muttrc(5) - phpMan

muttrc(5)                        User Manuals                        muttrc(5)

NAME
       muttrc - Configuration file for the Mutt Mail User Agent
DESCRIPTION
       A  mutt  configuration  file  consists of a series of "commands".  Each
       line of the file may contain one or more commands.  When multiple  com-
       mands are used, they must be separated by a semicolon (";").
       The  hash  mark, or pound sign ("#"), is used as a "comment" character.
       You can use it to annotate your initialization file. All text after the
       comment character to the end of the line is ignored.
       Single  quotes  ("'")  and  double  quotes  (""")  can be used to quote
       strings which contain spaces or other special characters.  The  differ-
       ence between the two types of quotes is similar to that of many popular
       shell programs, namely that a single quote is used to specify a literal
       string (one that is not interpreted for shell variables or quoting with
       a backslash [see next  paragraph]),  while  double  quotes  indicate  a
       string which should be evaluated.  For example, backticks are evaluated
       inside of double quotes, but not single quotes.
       \ quotes the next character, just as in shells such as  bash  and  zsh.
       For  example,  if  want to put quotes (""") inside of a string, you can
       use "\" to force the next character to be a literal instead  of  inter-
       preted character.
       "\\"  means  to insert a literal "\" into the line.  "\n" and "\r" have
       their usual C meanings of linefeed and carriage-return, respectively.
       A "\" at the end of a line can be used to split commands over  multiple
       lines,  provided  that  the  split points don't appear in the middle of
       command names.
       It is also possible to substitute the output of a Unix  command  in  an
       initialization  file.  This is accomplished by enclosing the command in
       backticks (`command`).
       UNIX environment variables can be accessed like the way it is  done  in
       shells  like  sh and bash: Prepend the name of the variable by a dollar
       ("$") sign.
COMMANDS
       alias [-group name [...]] key address [, address [ ... ]]
       unalias [ *  | key ]
              alias defines an alias key for the given addresses. Each address
              will be resolved into either an email address (user AT example.com)
              or a named email address  (User  Name  <user AT example.com>).  The
              address  may  be  specified  in  either format, or in the format
              "user AT example.com (User Name)".  unalias removes the alias  cor-
              responding  to  the given key or all aliases when "*" is used as
              an argument. The optional -group argument to  alias  causes  the
              aliased address(es) to be added to the named group.
       group [-group name] [-rx EXPR [ ... ]] [-addr address [ ... ]]
       ungroup [-group name ] [ * | [[-rx EXPR [ ... ]] [-addr address [ ... ]]]
              group  is  used  to  directly  add  either  addresses or regular
              expressions to the specified group or groups. The different cat-
              egories  of  arguments to the group command can be in any order.
              The flags -rx and -addr specify what the following strings (that
              cannot  begin  with a hyphen) should be interpreted as: either a
              regular expression or an email address,  respectively.   ungroup
              is  used  to  remove  addresses  or regular expressions from the
              specified group or groups. The syntax is similar  to  the  group
              command,  however the special character * can be used to empty a
              group of all of its contents.
              These address groups can  also  be  created  implicitly  by  the
              alias,  lists,  subscribe  and alternates commands by specifying
              the optional -group option.
              Once defined, these address groups can be used  in  patterns  to
              search for and limit the display to messages matching a group.
       alternates [-group name] regexp [ regexp [ ... ]]
       unalternates [ *  | regexp [ regexp [ ... ]] ]
              alternates  is  used  to  inform  mutt about alternate addresses
              where you receive mail; you can use regular expressions to spec-
              ify  alternate  addresses.   This affects mutt's idea about mes-
              sages from you, and messages  addressed  to  you.   unalternates
              removes  a regular expression from the list of known alternates.
              The -group flag causes all of the subsequent regular expressions
              to be added to the named group.
       alternative_order type[/subtype] [ ... ]
       unalternative_order [ *  | type/subtype] [...]
              alternative_order  command  permits  you  to  define an order of
              preference which is used by mutt to determine which  part  of  a
              multipart/alternative body to display.  A subtype of "*" matches
              any subtype, as does  an  empty  subtype.    unalternative_order
              removes entries from the ordered list or deletes the entire list
              when "*" is used as an argument.
       auto_view type[/subtype] [ ... ]
       unauto_view type[/subtype] [ ... ]
              This commands permits you to specify that mutt should  automati-
              cally convert the given MIME types to text/plain when displaying
              messages.  For this to work, there must be  a  mailcap(5)  entry
              for the given MIME type with the copiousoutput flag set.  A sub-
              type of "*" matches any subtype, as does an empty subtype.
       mime_lookup type[/subtype] [ ... ]
       unmime_lookup type[/subtype] [ ... ]
              This command permits you to define a list of "data" MIME content
              types  for which mutt will try to determine the actual file type
              from the file name, and not use a mailcap(5) entry given for the
              original  MIME  type.   For  instance,  you may add the applica-
              tion/octet-stream MIME type to this list.
       bind map1,map2,... key function
              This command binds the given key for the given map  or  maps  to
              the given function. Multiple maps may be specified by separating
              them with commas (no whitespace is allowed).
              Valid maps are: generic, alias, attach, browser, editor,  index,
              compose, pager, pgp, postpone, mix.
              For  more  information on keys and functions, please consult the
              Mutt Manual. Note that the function  name  is  to  be  specified
              without angle brackets.
       account-hook [!]regexp command
              This hook is executed whenever you access a remote mailbox. Use-
              ful to adjust configuration settings to different  IMAP  or  POP
              servers.
       charset-hook alias charset
              This command defines an alias for a character set.  This is use-
              ful to properly display messages which are tagged with a charac-
              ter set name not known to mutt.
       iconv-hook charset local-charset
              This command defines a system-specific name for a character set.
              This is useful when your system's iconv(3)  implementation  does
              not  understand  MIME  character set names (such as iso-8859-1),
              but instead insists on being  fed  with  implementation-specific
              character  set  names  (such as 8859-1).  In this specific case,
              you'd put this into your configuration file:
              iconv-hook iso-8859-1 8859-1
       message-hook [!]pattern command
              Before mutt displays (or formats for replying or  forwarding)  a
              message which matches the given pattern (or, when it is preceded
              by an exclamation mark, does not match the pattern),  the  given
              command  is  executed.   When multiple message-hooks match, they
              are  executed  in  the order in which they occur in the configu-
              ration file.
       folder-hook [!]regexp command
              When  mutt enters a folder which matches regexp (or, when regexp
              is preceded by an exclamation mark, does not match regexp),  the
              given command is executed.
              When  several  folder-hooks  match a given mail folder, they are
              executed in the order given in the configuration file.
       macro map key sequence [ description ]
              This command binds the given sequence of keys to the  given  key
              in  the given map or maps.  For valid maps, see bind. To specify
              multiple maps, put only a comma between the maps.
       color object foreground background [  regexp ]
       color index foreground background [  pattern ]
       uncolor index pattern [ pattern ... ]
              If your terminal supports color, these commands can be  used  to
              assign  foreground/background  combinations  to certain objects.
              Valid objects are: attachment, body, bold,  header,  hdrdefault,
              index,  indicator,  markers,  message,  normal, quoted, quotedN,
              search, signature, status, tilde, tree, underline.  The body and
              header objects allow you to restrict the colorization to a regu-
              lar expression.  The index object permits you to select  colored
              messages by pattern.
              Valid  colors include: white, black, green, magenta, blue, cyan,
              yellow, red, default, colorN.
       mono object attribute [ regexp ]
       mono index attribute [ pattern ]
              For terminals which don't support color, you  can  still  assign
              attributes  to  objects.   Valid attributes include: none, bold,
              underline, reverse, and standout.
       [un]ignore pattern [ pattern ... ]
              The ignore command permits you to specify  header  fields  which
              you  usually  don't  wish  to  see.   Any header field whose tag
              begins with an "ignored" pattern will be ignored.
              The unignore command permits you to define exceptions  from  the
              above mentioned list of ignored headers.
       lists [-group name] regexp [ regexp ... ]
       unlists regexp [ regexp ... ]
       subscribe [-group name] regexp [ regexp ... ]
       unsubscribe regexp [ regexp ... ]
              Mutt  maintains  two  lists  of mailing list address patterns, a
              list of subscribed mailing lists, and a list  of  known  mailing
              lists.   All  subscribed  mailing lists are known.  Patterns use
              regular expressions.
              The lists command adds a mailing list address  to  the  list  of
              known mailing lists.  The unlists command removes a mailing list
              from the lists of known and subscribed mailing lists.  The  sub-
              scribe  command  adds  a  mailing list to the lists of known and
              subscribed mailing lists.  The unsubscribe  command  removes  it
              from  the list of subscribed mailing lists. The -group flag adds
              all of the subsequent regular expressions to the named group.
       mbox-hook [!]pattern mailbox
              When mutt changes to a mail folder which matches pattern,  mail-
              box  will be used as the "mbox" folder, i.e., read messages will
              be moved to that folder when the mail folder is left.
              The first matching mbox-hook applies.
       mailboxes filename [ filename ... ]
       unmailboxes [ * | filename ... ]
              The mailboxes specifies folders which can receive mail and which
              will be checked for new messages.  When changing folders, press-
              ing space will cycle through folders with new mail.  The unmail-
              boxes  command  is  used  to remove a file name from the list of
              folders which can receive mail.  If "*" is specified as the file
              name, the list is emptied.
       my_hdr string
       unmy_hdr field
              Using  my_hdr, you can define headers which will be added to the
              messages you compose.  unmy_hdr  will  remove  the  given  user-
              defined headers.
       hdr_order header1 header2 [ ... ]
              With  this  command, you can specify an order in which mutt will
              attempt to present headers to you when viewing messages.
       save-hook [!]pattern filename
              When a message matches pattern, the default file name when  sav-
              ing it will be the given filename.
       fcc-hook [!]pattern filename
              When  an outgoing message matches pattern, the default file name
              for storing a copy (fcc) will be the given filename.
       fcc-save-hook [!]pattern filename
              This command is an abbreviation for identical fcc-hook and save-
              hook commands.
       send-hook [!]pattern command
              When  composing a message matching pattern, command is executed.
              When multiple send-hooks match, they are executed in  the  order
              in which they occur in the configuration file.
       send2-hook [!]pattern command
              Whenever  a message matching pattern is changed (either by edit-
              ing it or by using the compose menu), command is executed.  When
              multiple  send2-hooks  match,  they are executed in the order in
              which they occur in the configuration file.   Possible  applica-
              tions  include  setting  the $sendmail variable when a message's
              from header is changed.
              send2-hook execution is not triggered by  use  of  enter-command
              from the compose menu.
       reply-hook [!]pattern command
              When  replying  to  a  message matching pattern, command is exe-
              cuted.  When multiple reply-hooks match, they  are  executed  in
              the order in which they occur in the configuration file, but all
              reply-hooks are matched and executed before send-hooks,  regard-
              less of their order in the configuration file.
       crypt-hook pattern key-id
              The  crypt-hook command provides a method by which you can spec-
              ify the ID of the public key to be used when encrypting messages
              to  a certain recipient.  The meaning of "key ID" is to be taken
              broadly: This can be a different e-mail address, a numerical key
              ID, or even just an arbitrary search string.
       push string
              This command adds the named string to the keyboard buffer.
       set [no|inv|&|?]variable[=value] [ ... ]
       toggle variable [ ... ]
       unset variable [ ... ]
       reset variable [ ... ]
              These  commands  are  used  to  set and manipulate configuration
              variables.
              Mutt knows four  basic  types  of  variables:  boolean,  number,
              string  and  quadoption.   Boolean  variables can be set (true),
              unset (false), or toggled. Number variables can  be  assigned  a
              positive integer value.
              String  variables consist of any number of printable characters.
              Strings must be enclosed in quotes if  they  contain  spaces  or
              tabs.   You  may also use the "C" escape sequences \n and \t for
              newline and tab, respectively.
              Quadoption variables are used to control whether or  not  to  be
              prompted for certain actions, or to specify a default action.  A
              value of yes will cause the action to be carried  out  automati-
              cally  as if you had answered yes to the question.  Similarly, a
              value of no will cause the the action to be carried  out  as  if
              you  had  answered  "no." A value of ask-yes will cause a prompt
              with a default answer of "yes" and ask-no will provide a default
              answer of "no."
              The reset command resets all given variables to the compile time
              defaults.  If you reset the special variable all, all  variables
              will reset to their compile time defaults.
       source filename
              The given file will be evaluated as a configuration file.
       spam pattern format
              nospam pattern
              These commands define spam-detection patterns from external spam
              filters, so that mutt can sort,  limit,  and  search  on  ``spam
              tags'' or ``spam attributes'', or display them in the index. See
              the Mutt manual for details.
       unhook [ *  | hook-type ]
              This command will remove all hooks of a given type, or all hooks
              when  "*"  is  used as an argument.  hook-type can be any of the
              -hook commands documented above.
PATTERNS
       In various places with mutt, including some of the above mentioned hook
       commands, you can specify patterns to match messages.
   Constructing Patterns
       A simple pattern consists of an operator of the form "~character", pos-
       sibly followed by a parameter against which mutt is supposed  to  match
       the  object specified by this operator.  For some characters, the ~ may
       be replaced by another character to alter the behavior  of  the  match.
       These are described in the list of operators, below.
       With some of these operators, the object to be matched consists of sev-
       eral e-mail addresses.  In these cases, the object  is  matched  if  at
       least  one  of  these  e-mail  addresses matches. You can prepend a hat
       ("^") character to such a pattern to indicate that all  addresses  must
       match in order to match the object.
       You  can  construct  complex patterns by combining simple patterns with
       logical operators.  Logical AND is specified  by  simply  concatenating
       two  simple patterns, for instance "~C mutt-dev ~s bug".  Logical OR is
       specified by inserting a vertical bar ("|") between two  patterns,  for
       instance  "~C  mutt-dev | ~s bug".  Additionally, you can negate a pat-
       tern by prepending a bang ("!") character.  For logical  grouping,  use
       braces ("()"). Example: "!(~t mutt|~c mutt) ~f elkins".
   Simple Patterns
       Mutt understands the following simple patterns:
       ~A          all messages
       ~b EXPR     messages which contain EXPR in the message body.
       =b STRING   messages  which contain STRING in the message body. If IMAP
                   is enabled, searches for STRING on the server, rather  than
                   downloading each message and searching it locally.
       ~B EXPR     messages which contain EXPR in the whole message.
       ~c EXPR     messages carbon-copied to EXPR
       %c GROUP    messages carbon-copied to any member of GROUP
       ~C EXPR     messages either to: or cc: EXPR
       %C GROUP    messages either to: or cc: to any member of GROUP
       ~d MIN-MAX  messages with "date-sent" in a Date range
       ~D          deleted messages
       ~e EXPR     messages which contain EXPR in the "Sender" field
       %e GROUP    messages  which  contain  a member of GROUP in the "Sender"
                   field
       ~E          expired messages
       ~f EXPR     messages originating from EXPR
       %f GROUP    messages originating from any member of GROUP
       ~F          flagged messages
       ~g          PGP signed messages
       ~G          PGP encrypted messages
       ~h EXPR     messages which contain EXPR in the message header
       ~H EXPR     messages with spam tags matching EXPR
       ~i EXPR     messages which match EXPR in the "Message-ID" field
       ~k          messages containing PGP key material
       ~l          messages addressed to a  known  mailing  list  (defined  by
                   either subscribe or list)
       ~L EXPR     messages either originated or received by EXPR
       %L GROUP    messages  either  originated  or  received by any member of
                   GROUP
       ~m MIN-MAX  message in the range MIN to MAX
       ~n MIN-MAX  messages with a score in the range MIN to MAX
       ~N          new messages
       ~O          old messages
       ~p          messages addressed to you (as defined by alternates)
       ~P          messages from you (as defined by alternates)
       ~Q          messages which have been replied to
       ~r MIN-MAX  messages with "date-received" in a Date range
       ~R          read messages
       ~s EXPR     messages having EXPR in the "Subject" field.
       ~S          superseded messages
       ~t EXPR     messages addressed to EXPR
       ~T          tagged messages
       ~u          messages addressed to a subscribed mailing list (defined by
                   subscribe commands)
       ~U          unread messages
       ~v          message is part of a collapsed thread.
       ~V          cryptographically verified messages
       ~x EXPR     messages  which  contain  EXPR  in the "References" or "In-
                   Reply-To" field
       ~X MIN-MAX  messages with MIN - MAX attachments
       ~y EXPR     messages which contain EXPR in the "X-Label" field
       ~z MIN-MAX  messages with a size in the range MIN to MAX
       ~=          duplicated messages (see $duplicate_threads)
       ~$          unreferenced message (requires threaded view)
       ~(PATTERN)  messages in threads containing messages matching a  certain
                   pattern,  e.g.  all  threads  containing messages from you:
                   ~(~P)
       In the above, EXPR is a regular expression.
       With the ~d, ~m, ~n, ~r, ~X, and ~z operators,  you  can  also  specify
       ranges in the forms <MAX, >MIN, MIN-, and -MAX.
       With  the  ~z operator, the suffixes "K" and "M" are allowed to specify
       kilobyte and megabyte respectively.
   Matching dates
       The ~d and ~r operators are used to match date ranges, which are inter-
       preted to be given in your local time zone.
       A  date  is  of  the  form DD[/MM[/[cc]YY]], that is, a two-digit date,
       optionally followed by a two-digit month, optionally followed by a year
       specifications.  Omitted fields default to the current month and year.
       Mutt  understands  either  two or four digit year specifications.  When
       given a two-digit year, mutt will interpret  values  less  than  70  as
       lying in the 21st century (i.e., "38" means 2038 and not 1938, and "00"
       is interpreted as 2000), and values greater than  or  equal  to  70  as
       lying in the 20th century.
       Note  that  this  behavior  is Y2K compliant, but that mutt does have a
       Y2.07K problem.
       If a date range consists of a single date,  the  operator  in  question
       will  match  that  precise  date.  If the date range consists of a dash
       ("-"), followed by a date, this range will match any date before and up
       to  the  date  given.  Similarly, a date followed by a dash matches the
       date given and any later point of time.   Two  dates,  separated  by  a
       dash, match any date which lies in the given range of time.
       You  can  also  modify  any absolute date by giving an error range.  An
       error range consists of one of the characters +, -, *,  followed  by  a
       positive  number, followed by one of the unit characters y, m, w, or d,
       specifying a unit of years, months, weeks, or days.   +  increases  the
       maximum  date  matched  by  the given interval of time, - decreases the
       minimum date matched by the given interval of time, and * increases the
       maximum date and decreases the minimum date matched by the given inter-
       val of time.  It is possible to  give  multiple  error  margins,  which
       cumulate.  Example: 1/1/2001-1w+2w*3d
       You  can  also specify offsets relative to the current date.  An offset
       is specified as one of the characters <, >, =, followed by  a  positive
       number,  followed  by  one  of  the  unit  characters y, m, w, or d.  >
       matches dates which are older than the specified  amount  of  time,  an
       offset  which  begins with the character < matches dates which are more
       recent than the specified amount of time, and an  offset  which  begins
       with  the  character  =  matches points of time which are precisely the
       given amount of time ago.
CONFIGURATION VARIABLES
       abort_nosubject
              Type: quadoption
              Default: ask-yes
              If set to yes, when composing messages and no subject  is  given
              at  the  subject prompt, composition will be aborted.  If set to
              no, composing messages with no  subject  given  at  the  subject
              prompt will never be aborted.

       abort_unmodified
              Type: quadoption
              Default: yes
              If  set to yes, composition will automatically abort after edit-
              ing the message body if no changes are made to  the  file  (this
              check  only happens after the first edit of the file).  When set
              to no, composition will never be aborted.

       alias_file
              Type: path
              Default: "~/.muttrc"
              The default file in which to save aliases created by  the  <cre-
              ate-alias>  function.  Entries added to this file are encoded in
              the character set specified by $config_charset if it is  set  or
              the current character set otherwise.
              Note:  Mutt  will  not  automatically source this file; you must
              explicitly use the "source" command for it  to  be  executed  in
              case this option points to a dedicated alias file.
              The  default  for this option is the currently used muttrc file,
              or "~/.muttrc" if no user muttrc was found.

       alias_format
              Type: string
              Default: "%4n %2f %t %-10a   %r"
              Specifies the format of the data displayed for the "alias" menu.
              The following printf(3)-style sequences are available:
              %a     alias name
              %f     flags - currently, a "d" for an alias marked for deletion
              %n     index number
              %r     address which alias expands to
              %t     character  which  indicates  if  the  alias is tagged for
                     inclusion

       allow_8bit
              Type: boolean
              Default: yes
              Controls whether 8-bit data is converted to 7-bit  using  either
              Quoted- Printable or Base64 encoding when sending mail.

       allow_ansi
              Type: boolean
              Default: no
              Controls whether ANSI color codes in messages (and color tags in
              rich text messages) are to be interpreted.  Messages  containing
              these codes are rare, but if this option is set, their text will
              be colored accordingly. Note that this may override  your  color
              choices,  and  even  present a security problem, since a message
              could include a line like

              [-- PGP output follows ...

              and give it the same color as your attachment  color  (see  also
              $crypt_timestamp).

       arrow_cursor
              Type: boolean
              Default: no
              When  set,  an arrow ("->") will be used to indicate the current
              entry in menus instead of highlighting the whole line.  On  slow
              network  or  modem  links this will make response faster because
              there is less that has to be redrawn on the screen  when  moving
              to the next or previous entries in the menu.

       ascii_chars
              Type: boolean
              Default: no
              If  set,  Mutt  will  use plain ASCII characters when displaying
              thread and attachment trees, instead of the default ACS  charac-
              ters.

       askbcc
              Type: boolean
              Default: no
              If set, Mutt will prompt you for blind-carbon-copy (Bcc) recipi-
              ents before editing an outgoing message.

       askcc
              Type: boolean
              Default: no
              If set, Mutt will prompt you  for  carbon-copy  (Cc)  recipients
              before editing the body of an outgoing message.

       assumed_charset
              Type: string
              Default: ""
              This  variable  is  a colon-separated list of character encoding
              schemes for  messages  without  character  encoding  indication.
              Header  field  values and message body content without character
              encoding indication would be assumed that they  are  written  in
              one of this list.  By default, all the header fields and message
              body without  any  charset  indication  are  assumed  to  be  in
              "us-ascii".
              For example, Japanese users might prefer this:

              set assumed_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"

              However, only the first content is valid for the message body.

       attach_charset
              Type: string
              Default: ""
              This  variable  is  a colon-separated list of character encoding
              schemes for text file attachments. Mutt  uses  this  setting  to
              guess which encoding files being attached are encoded in to con-
              vert them to a proper character set given in $send_charset.
              If unset, the value of $charset will be used instead.  For exam-
              ple,  the  following  configuration would work for Japanese text
              handling:

              set attach_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"

              Note: for Japanese users, "iso-2022-*" must be put at  the  head
              of the value as shown above if included.

       attach_format
              Type: string
              Default: "%u%D%I %t%4n %T%.40d%> [%.7m/%.10M, %.6e%?C?, %C?, %s] "
              This  variable  describes  the  format of the "attachment" menu.
              The following printf(3)-style sequences are understood:
              %C     charset
              %c     requires charset conversion ("n" or "c")
              %D     deleted flag
              %d     description
              %e     MIME content-transfer-encoding
              %f     filename
              %I     disposition ("I" for inline, "A" for attachment)
              %m     major MIME type
              %M     MIME subtype
              %n     attachment number
              %Q     "Q", if MIME part qualifies for attachment counting
              %s     size
              %t     tagged flag
              %T     graphic tree characters
              %u     unlink (=to delete) flag
              %X     number of qualifying MIME parts  in  this  part  and  its
                     children (please see the "attachments" section for possi-
                     ble speed effects)
              %>X    right justify the rest of the string and pad with charac-
                     ter "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad
              For  an  explanation of "soft-fill", see the $index_format docu-
              mentation.

       attach_sep
              Type: string
              Default: "\n"
              The separator to add between attachments when operating (saving,
              printing, piping, etc) on a list of tagged attachments.

       attach_split
              Type: boolean
              Default: yes
              If  this  variable  is  unset, when operating (saving, printing,
              piping, etc) on a list of tagged attachments, Mutt will concate-
              nate  the  attachments  and  will  operate  on  them as a single
              attachment.  The  $attach_sep  separator  is  added  after  each
              attachment.  When  set, Mutt will operate on the attachments one
              by one.

       attribution
              Type: string
              Default: "On %d, %n wrote:"
              This is the string that will precede a message  which  has  been
              included   in   a   reply.    For  a  full  listing  of  defined
              printf(3)-like sequences see the section on $index_format.

       auto_tag
              Type: boolean
              Default: no
              When set, functions in the index menu  which  affect  a  message
              will be applied to all tagged messages (if there are any).  When
              unset, you must first use the <tag-prefix>  function  (bound  to
              ";"  by  default)  to make the next function apply to all tagged
              messages.

       autoedit
              Type: boolean
              Default: no
              When set along with $edit_headers, Mutt will  skip  the  initial
              send-menu  (prompting  for subject and recipients) and allow you
              to immediately begin editing the  body  of  your  message.   The
              send-menu  may  still be accessed once you have finished editing
              the body of your message.
              Note: when this option is set, you cannot  use  send-hooks  that
              depend  on  the recipients when composing a new (non-reply) mes-
              sage, as the initial list of recipients is empty.
              Also see $fast_reply.

       beep
              Type: boolean
              Default: yes
              When this variable is set, mutt will beep when an error occurs.

       beep_new
              Type: boolean
              Default: no
              When this variable is set, mutt will beep whenever it  prints  a
              message  notifying  you of new mail.  This is independent of the
              setting of the $beep variable.

       bounce
              Type: quadoption
              Default: ask-yes
              Controls whether you will be asked to confirm bouncing messages.
              If  set  to yes you don't get asked if you want to bounce a mes-
              sage. Setting this variable to no is not generally  useful,  and
              thus not recommended, because you are unable to bounce messages.

       bounce_delivered
              Type: boolean
              Default: yes
              When  this variable is set, mutt will include Delivered-To head-
              ers when bouncing messages.  Postfix users  may  wish  to  unset
              this variable.

       braille_friendly
              Type: boolean
              Default: no
              When  this  variable  is  set, mutt will place the cursor at the
              beginning  of  the  current  line  in  menus,  even   when   the
              $arrow_cursor variable is unset, making it easier for blind per-
              sons using Braille displays to follow these menus.   The  option
              is  unset  by default because many visual terminals don't permit
              making the cursor invisible.

       certificate_file
              Type: path
              Default: "~/.mutt_certificates"
              This variable specifies the  file  where  the  certificates  you
              trust are saved. When an unknown certificate is encountered, you
              are asked if you accept it or not. If you accept  it,  the  cer-
              tificate  can also be saved in this file and further connections
              are automatically accepted.
              You can also manually add CA  certificates  in  this  file.  Any
              server  certificate that is signed with one of these CA certifi-
              cates is also automatically accepted.
              Example:

              set certificate_file=~/.mutt/certificates


       charset
              Type: string
              Default: ""
              Character set your terminal uses to display  and  enter  textual
              data.  It is also the fallback for $send_charset.
              Upon  startup  Mutt  tries to derive this value from environment
              variables such as $LC_CTYPE or $LANG.
              Note: It should only be set in case Mutt isn't able to determine
              the character set used correctly.

       check_mbox_size
              Type: boolean
              Default: no
              When  this  variable  is  set, mutt will use file size attribute
              instead of access time when checking for new mail  in  mbox  and
              mmdf folders.
              This  variable  is  unset  by default and should only be enabled
              when new mail detection for these folder types is unreliable  or
              doesn't work.
              Note that enabling this variable should happen before any "mail-
              boxes" directives occur in configuration files regarding mbox or
              mmdf  folders  because  mutt  needs to determine the initial new
              mail status of such a mailbox by performing a fast mailbox  scan
              when  it  is defined.  Afterwards the new mail status is tracked
              by file size changes.

       check_new
              Type: boolean
              Default: yes
              Note: this option only affects maildir and MH style mailboxes.
              When set, Mutt will check for new mail delivered while the mail-
              box  is  open.  Especially with MH mailboxes, this operation can
              take quite some time since it involves  scanning  the  directory
              and  checking each file to see if it has already been looked at.
              If this variable is unset, no check for new  mail  is  performed
              while the mailbox is open.

       collapse_unread
              Type: boolean
              Default: yes
              When  unset,  Mutt will not collapse a thread if it contains any
              unread messages.

       compose_format
              Type: string
              Default: "-- Mutt: Compose  [Approx. msg size: %l   Atts: %a]%>-"
              Controls the format of the status line displayed  in  the  "com-
              pose"  menu.   This string is similar to $status_format, but has
              its own set of printf(3)-like sequences:
              %a     total number of attachments
              %h     local hostname
              %l     approximate size (in bytes) of the current message
              %v     Mutt version string
              See the text  describing  the  $status_format  option  for  more
              information on how to set $compose_format.

       config_charset
              Type: string
              Default: ""
              When  defined,  Mutt  will recode commands in rc files from this
              encoding to the current character set as specified  by  $charset
              and  aliases  written  to $alias_file from the current character
              set.
              Please note that if setting $charset it must be done before set-
              ting $config_charset.
              Recoding  should be avoided as it may render unconvertable char-
              acters as question  marks  which  can  lead  to  undesired  side
              effects (for example in regular expressions).

       confirmappend
              Type: boolean
              Default: yes
              When  set, Mutt will prompt for confirmation when appending mes-
              sages to an existing mailbox.

       confirmcreate
              Type: boolean
              Default: yes
              When set, Mutt will prompt for confirmation when saving messages
              to a mailbox which does not yet exist before creating it.

       connect_timeout
              Type: number
              Default: 30
              Causes  Mutt  to  timeout a network connection (for IMAP, POP or
              SMTP) after this many seconds if the connection is not  able  to
              be  established.   A  negative value causes Mutt to wait indefi-
              nitely for the connection attempt to succeed.

       content_type
              Type: string
              Default: "text/plain"
              Sets the default Content-Type for the  body  of  newly  composed
              messages.

       copy
              Type: quadoption
              Default: yes
              This  variable  controls  whether or not copies of your outgoing
              messages will be saved for later references.  Also see  $record,
              $save_name, $force_name and "fcc-hook".

       crypt_autoencrypt
              Type: boolean
              Default: no
              Setting  this  variable will cause Mutt to always attempt to PGP
              encrypt outgoing messages.  This is probably only useful in con-
              nection to the "send-hook" command.  It can be overridden by use
              of the pgp menu, when encryption is not required or  signing  is
              requested as well.  If $smime_is_default is set, then OpenSSL is
              used instead to create S/MIME messages and settings can be over-
              ridden by use of the smime menu instead.  (Crypto only)

       crypt_autopgp
              Type: boolean
              Default: yes
              This  variable  controls  whether  or not mutt may automatically
              enable  PGP   encryption/signing   for   messages.    See   also
              $crypt_autoencrypt,     $crypt_replyencrypt,    $crypt_autosign,
              $crypt_replysign and $smime_is_default.

       crypt_autosign
              Type: boolean
              Default: no
              Setting this variable will cause Mutt to always attempt to cryp-
              tographically sign outgoing messages.  This can be overridden by
              use of the pgp menu, when signing is not required or  encryption
              is  requested as well. If $smime_is_default is set, then OpenSSL
              is used instead to create S/MIME messages and  settings  can  be
              overridden  by  use  of  the smime menu instead of the pgp menu.
              (Crypto only)

       crypt_autosmime
              Type: boolean
              Default: yes
              This variable controls whether or  not  mutt  may  automatically
              enable   S/MIME   encryption/signing   for  messages.  See  also
              $crypt_autoencrypt,    $crypt_replyencrypt,     $crypt_autosign,
              $crypt_replysign and $smime_is_default.

       crypt_replyencrypt
              Type: boolean
              Default: yes
              If set, automatically PGP or OpenSSL encrypt replies to messages
              which are encrypted.  (Crypto only)

       crypt_replysign
              Type: boolean
              Default: no
              If set, automatically PGP or OpenSSL sign  replies  to  messages
              which are signed.
              Note:  this  does  not  work  on messages that are encrypted and
              signed!  (Crypto only)

       crypt_replysignencrypted
              Type: boolean
              Default: no
              If set, automatically PGP or OpenSSL sign  replies  to  messages
              which  are  encrypted.  This  makes  sense  in  combination with
              $crypt_replyencrypt, because it allows you to sign all  messages
              which  are automatically encrypted.  This works around the prob-
              lem noted in $crypt_replysign, that mutt is not able to find out
              whether an encrypted message is also signed.  (Crypto only)

       crypt_timestamp
              Type: boolean
              Default: yes
              If  set, mutt will include a time stamp in the lines surrounding
              PGP or S/MIME output, so spoofing such lines is more  difficult.
              If  you are using colors to mark these lines, and rely on these,
              you may unset this setting.  (Crypto only)

       crypt_use_gpgme
              Type: boolean
              Default: no
              This variable controls the use of the GPGME-enabled crypto back-
              ends.   If  it is set and Mutt was built with gpgme support, the
              gpgme code for S/MIME and PGP will be used instead of the  clas-
              sic  code.  Note that you need to set this option in .muttrc; it
              won't have any effect when used interactively.

       crypt_use_pka
              Type: boolean
              Default: no
              Controls      whether       mutt       uses       PKA       (see
              http://www.g10code.de/docs/pka-intro.de.pdf)   during  signature
              verification (only supported by the GPGME backend).

       crypt_verify_sig
              Type: quadoption
              Default: yes
              If "yes", always attempt to verify PGP or S/MIME signatures.  If
              "ask-*",  ask  whether or not to verify the signature.  If "no",
              never attempt to verify cryptographic signatures.  (Crypto only)

       date_format
              Type: string
              Default: "!%a, %b %d, %Y at %I:%M:%S%p %Z"
              This variable controls the format of the  date  printed  by  the
              "%d"  sequence  in  $index_format.   This is passed to the strf-
              time(3) function to process the date, see the man page  for  the
              proper syntax.
              Unless  the  first  character in the string is a bang ("!"), the
              month and week day names are expanded according  to  the  locale
              specified in the variable $locale. If the first character in the
              string is a bang, the bang is discarded, and the month and  week
              day names in the rest of the string are expanded in the C locale
              (that is in US English).

       default_hook
              Type: string
              Default: "~f %s !~P | (~P ~C %s)"
              This variable controls how "message-hook", "reply-hook",  "send-
              hook",  "send2-hook", "save-hook", and "fcc-hook" will be inter-
              preted if they are specified with only a simple regexp,  instead
              of  a  matching  pattern.   The hooks are expanded when they are
              declared, so a hook will be interpreted according to  the  value
              of this variable at the time the hook is declared.
              The  default  value matches if the message is either from a user
              matching the regular expression given, or if it is from you  (if
              the  from  address matches "alternates") and is to or cc'ed to a
              user matching the given regular expression.

       delete
              Type: quadoption
              Default: ask-yes
              Controls whether or not messages are really deleted when closing
              or  synchronizing a mailbox.  If set to yes, messages marked for
              deleting will automatically be purged without prompting.  If set
              to no, messages marked for deletion will be kept in the mailbox.

       delete_untag
              Type: boolean
              Default: yes
              If  this  option  is  set, mutt will untag messages when marking
              them for deletion.  This  applies  when  you  either  explicitly
              delete a message, or when you save it to another folder.

       digest_collapse
              Type: boolean
              Default: yes
              If this option is set, mutt's received-attachments menu will not
              show the subparts of individual messages in a  multipart/digest.
              To see these subparts, press "v" on that menu.

       display_filter
              Type: path
              Default: ""
              When  set,  specifies a command used to filter messages.  When a
              message is viewed it  is  passed  as  standard  input  to  $dis-
              play_filter,  and the filtered message is read from the standard
              output.

       dsn_notify
              Type: string
              Default: ""
              This  variable  sets  the  request  for  when  notification   is
              returned.   The  string  consists  of a comma separated list (no
              spaces!) of one or  more  of  the  following:  never,  to  never
              request notification, failure, to request notification on trans-
              mission failure, delay, to be notified of message  delays,  suc-
              cess, to be notified of successful transmission.
              Example:

              set dsn_notify="failure,delay"

              Note:  when  using $sendmail for delivery, you should not enable
              this unless you are either using Sendmail 8.8.x or greater or  a
              MTA  providing a sendmail(1)-compatible interface supporting the
              -N  option  for  DSN.  For  SMTP  delivery,   DSN   support   is
              auto-detected  so that it depends on the server whether DSN will
              be used or not.

       dsn_return
              Type: string
              Default: ""
              This variable controls how much of your message is  returned  in
              DSN  messages.   It may be set to either hdrs to return just the
              message header, or full to return the full message.
              Example:

              set dsn_return=hdrs

              Note: when using $sendmail for delivery, you should  not  enable
              this  unless you are either using Sendmail 8.8.x or greater or a
              MTA providing a sendmail(1)-compatible interface supporting  the
              -R   option   for   DSN.  For  SMTP  delivery,  DSN  support  is
              auto-detected so that it depends on the server whether DSN  will
              be used or not.

       duplicate_threads
              Type: boolean
              Default: yes
              This  variable  controls  whether  mutt,  when  $sort  is set to
              threads, threads messages with the same Message-Id together.  If
              it  is  set, it will indicate that it thinks they are duplicates
              of each other with an equals sign in the thread tree.

       edit_headers
              Type: boolean
              Default: no
              This option allows you to edit the header of your outgoing  mes-
              sages along with the body of your message.
              Note  that changes made to the References: and Date: headers are
              ignored for interoperability reasons.

       editor
              Type: path
              Default: ""
              This variable specifies  which  editor  is  used  by  mutt.   It
              defaults  to  the  value of the $VISUAL, or $EDITOR, environment
              variable, or to the string "vi" if neither of those are set.

       encode_from
              Type: boolean
              Default: no
              When set, mutt will quoted-printable encode messages  when  they
              contain  the  string  "From  "  (note the trailing space) in the
              beginning of a line.  This is useful to avoid the tampering cer-
              tain mail delivery and transport agents tend to do with messages
              (in order to prevent tools from misinterpreting the  line  as  a
              mbox message separator).

       envelope_from_address
              Type: e-mail address
              Default: ""
              Manually  sets  the envelope sender for outgoing messages.  This
              value is ignored if $use_envelope_from is unset.

       escape
              Type: string
              Default: "~"
              Escape character to use for functions in the built-in editor.

       fast_reply
              Type: boolean
              Default: no
              When set, the initial prompt  for  recipients  and  subject  are
              skipped  when  replying  to messages, and the initial prompt for
              subject is skipped when forwarding messages.
              Note: this variable has no effect when the $autoedit variable is
              set.

       fcc_attach
              Type: quadoption
              Default: yes
              This  variable  controls  whether or not attachments on outgoing
              messages are saved along with the main body of your message.

       fcc_clear
              Type: boolean
              Default: no
              When this variable is set, FCCs will be stored  unencrypted  and
              unsigned,  even  when  the  actual  message  is encrypted and/or
              signed.  (PGP only)

       folder
              Type: path
              Default: "~/Mail"
              Specifies the default location of your mailboxes.  A "+" or  "="
              at  the beginning of a pathname will be expanded to the value of
              this variable.  Note that if you change this variable (from  the
              default)  value you need to make sure that the assignment occurs
              before you use "+" or "=" for any other variables  since  expan-
              sion takes place when handling the "mailboxes" command.

       folder_format
              Type: string
              Default: "%2C %t %N %F %2l %-8.8u %-8.8g %8s %d %f"
              This  variable  allows you to customize the file browser display
              to your personal taste.  This string is similar  to  $index_for-
              mat, but has its own set of printf(3)-like sequences:
              %C     current file number
              %d     date/time folder was last modified
              %D     date/time folder was last modified using $date_format.
              %f     filename ("/" is appended to directory names, "@" to sym-
                     bolic links and "*" to executable files)
              %F     file permissions
              %g     group name (or numeric gid, if missing)
              %l     number of hard links
              %N     N if folder has new mail, blank otherwise
              %s     size in bytes
              %t     "*" if the file is tagged, blank otherwise
              %u     owner name (or numeric uid, if missing)
              %>X    right justify the rest of the string and pad with charac-
                     ter "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad
              For  an  explanation of "soft-fill", see the $index_format docu-
              mentation.

       followup_to
              Type: boolean
              Default: yes
              Controls whether or not the "Mail-Followup-To:" header field  is
              generated  when sending mail.  When set, Mutt will generate this
              field when you are replying to a known mailing  list,  specified
              with the "subscribe" or "lists" commands.
              This field has two purposes.  First, preventing you from receiv-
              ing duplicate copies of replies to messages which  you  send  to
              mailing lists, and second, ensuring that you do get a reply sep-
              arately for any messages sent to known lists to  which  you  are
              not subscribed.
              The  header  will contain only the list's address for subscribed
              lists, and both the list address and your own email address  for
              unsubscribed  lists.  Without this header, a group reply to your
              message sent to a subscribed list will be sent to both the  list
              and  your address, resulting in two copies of the same email for
              you.

       force_name
              Type: boolean
              Default: no
              This variable is similar to $save_name, except  that  Mutt  will
              store  a  copy  of  your outgoing message by the username of the
              address you are sending to even if that mailbox does not exist.
              Also see the $record variable.

       forward_decode
              Type: boolean
              Default: yes
              Controls the decoding of complex MIME messages  into  text/plain
              when  forwarding  a message.  The message header is also RFC2047
              decoded.  This variable is only used, if $mime_forward is unset,
              otherwise $mime_forward_decode is used instead.

       forward_decrypt
              Type: boolean
              Default: yes
              Controls  the  handling  of encrypted messages when forwarding a
              message.  When set, the outer layer of  encryption  is  stripped
              off.   This  variable  is  only used if $mime_forward is set and
              $mime_forward_decode is unset.  (PGP only)

       forward_edit
              Type: quadoption
              Default: yes
              This quadoption controls whether or not the  user  is  automati-
              cally  placed in the editor when forwarding messages.  For those
              who always want to forward with no modification, use  a  setting
              of "no".

       forward_format
              Type: string
              Default: "[%a: %s]"
              This  variable  controls  the  default subject when forwarding a
              message.  It uses the same format sequences as the $index_format
              variable.

       forward_quote
              Type: boolean
              Default: no
              When  set,  forwarded  messages included in the main body of the
              message (when $mime_forward  is  unset)  will  be  quoted  using
              $indent_string.

       from
              Type: e-mail address
              Default: ""
              When set, this variable contains a default from address.  It can
              be overridden using "my_hdr" (including from a "send-hook")  and
              $reverse_name.  This variable is ignored if $use_from is unset.
              This  setting  defaults to the contents of the environment vari-
              able $EMAIL.

       gecos_mask
              Type: regular expression
              Default: "^[^,]*"
              A regular expression used by mutt to parse the GECOS field of  a
              password entry when expanding the alias.  The default value will
              return the string up to the first "," encountered.  If the GECOS
              field  contains  a  string  like  "lastname, firstname" then you
              should set it to ".*".
              This can be useful  if  you  see  the  following  behavior:  you
              address  an e-mail to user ID "stevef" whose full name is "Steve
              Franklin".    If   mutt   expands   "stevef"   to    ""Franklin"
              stevef AT foo.bar" then you should set the $gecos_mask to a regular
              expression that will match the whole name so  mutt  will  expand
              "Franklin" to "Franklin, Steve".

       hdrs
              Type: boolean
              Default: yes
              When  unset,  the  header  fields normally added by the "my_hdr"
              command are not created.  This variable  must  be  unset  before
              composing a new message or replying in order to take effect.  If
              set, the user defined header fields are added to every new  mes-
              sage.

       header
              Type: boolean
              Default: no
              When set, this variable causes Mutt to include the header of the
              message you are replying to into the  edit  buffer.   The  $weed
              setting applies.

       header_cache
              Type: path
              Default: ""
              This  variable points to the header cache database.  If pointing
              to a directory Mutt will contain a header  cache  database  file
              per  folder,  if  pointing  to a file that file will be a single
              global header cache. By default it is unset so no header caching
              will be used.
              Header  caching can greatly improve speed when opening POP, IMAP
              MH or Maildir folders, see "caching" for details.

       header_cache_compress
              Type: boolean
              Default: yes
              When mutt is compiled with qdbm or tokyocabinet as header  cache
              backend,  this  option  determines  whether the database will be
              compressed.  Compression results in database files roughly being
              one  fifth  of  the  usual  diskspace, but the decompression can
              result in a slower opening of cached folder(s) which in  general
              is still much faster than opening non header cached folders.

       help
              Type: boolean
              Default: yes
              When set, help lines describing the bindings for the major func-
              tions provided by each menu are displayed on the first  line  of
              the screen.
              Note:  The  binding will not be displayed correctly if the func-
              tion is bound to a sequence  rather  than  a  single  keystroke.
              Also,  the  help line may not be updated if a binding is changed
              while Mutt is running.  Since this variable is  primarily  aimed
              at new users, neither of these should present a major problem.

       hidden_host
              Type: boolean
              Default: no
              When  set,  mutt will skip the host name part of $hostname vari-
              able when adding the domain part to  addresses.   This  variable
              does  not  affect the generation of Message-IDs, and it will not
              lead to the cut-off of first-level domains.

       hide_limited
              Type: boolean
              Default: no
              When set, mutt will not show the presence of messages  that  are
              hidden by limiting, in the thread tree.

       hide_missing
              Type: boolean
              Default: yes
              When set, mutt will not show the presence of missing messages in
              the thread tree.

       hide_thread_subject
              Type: boolean
              Default: yes
              When set, mutt will not show the  subject  of  messages  in  the
              thread  tree that have the same subject as their parent or clos-
              est previously displayed sibling.

       hide_top_limited
              Type: boolean
              Default: no
              When set, mutt will not show the presence of messages  that  are
              hidden  by  limiting,  at the top of threads in the thread tree.
              Note that when $hide_limited is set, this option  will  have  no
              effect.

       hide_top_missing
              Type: boolean
              Default: yes
              When set, mutt will not show the presence of missing messages at
              the  top  of  threads  in  the  thread  tree.   Note  that  when
              $hide_missing is set, this option will have no effect.

       history
              Type: number
              Default: 10
              This  variable  controls  the  size (in number of strings remem-
              bered) of the string history buffer per category. The buffer  is
              cleared each time the variable is set.

       history_file
              Type: path
              Default: "~/.mutthistory"
              The file in which Mutt will save its history.

       honor_disposition
              Type: boolean
              Default: no
              When  set,  Mutt will not display attachments with a disposition
              of "attachment" inline even if it could render the part to plain
              text.  These  MIME  parts can only be viewed from the attachment
              menu.
              If unset, Mutt will render all MIME parts it can properly trans-
              form to plain text.

       honor_followup_to
              Type: quadoption
              Default: yes
              This  variable controls whether or not a Mail-Followup-To header
              is honored when group-replying to a message.

       hostname
              Type: string
              Default: ""
              Specifies the fully-qualified hostname of  the  system  mutt  is
              running  on  containing  the  host's  name and the DNS domain it
              belongs to. It is used as the domain part (after "@") for  local
              email addresses as well as Message-Id headers.
              Its  value  is  determined  at startup as follows: If the node's
              name as returned by the uname(3) function contains the  hostname
              and  the domain, these are used to construct $hostname. If there
              is no domain part returned, Mutt will look  for  a  "domain"  or
              "search"  line  in  /etc/resolv.conf  to  determine  the domain.
              Optionally, Mutt can be compiled with a  fixed  domain  name  in
              which case a detected one is not used.
              Also see $use_domain and $hidden_host.

       ignore_linear_white_space
              Type: boolean
              Default: no
              This option replaces linear-white-space between encoded-word and
              text to a single space to prevent the  display  of  MIME-encoded
              "Subject:" field from being divided into multiple lines.

       ignore_list_reply_to
              Type: boolean
              Default: no
              Affects  the  behavior  of the <reply> function when replying to
              messages from mailing lists (as defined by  the  "subscribe"  or
              "lists" commands).  When set, if the "Reply-To:" field is set to
              the same value  as  the  "To:"  field,  Mutt  assumes  that  the
              "Reply-To:"  field  was  set  by  the  mailing  list to automate
              responses to the list, and will ignore this field.  To direct  a
              response  to  the  mailing list when this option is set, use the
              <list-reply> function; <group-reply>  will  reply  to  both  the
              sender and the list.

       imap_authenticators
              Type: string
              Default: ""
              This  is  a  colon-delimited list of authentication methods mutt
              may attempt to use to log in to an IMAP  server,  in  the  order
              mutt should try them.  Authentication methods are either "login"
              or the right side of an IMAP "AUTH=xxx" capability string,  e.g.
              "digest-md5", "gssapi" or "cram-md5". This option is case-insen-
              sitive. If it's unset (the default) mutt will try all  available
              methods, in order from most-secure to least-secure.
              Example:

              set imap_authenticators="gssapi:cram-md5:login"

              Note:  Mutt  will only fall back to other authentication methods
              if the previous methods are unavailable. If a method  is  avail-
              able but authentication fails, mutt will not connect to the IMAP
              server.

       imap_check_subscribed
              Type: boolean
              Default: no
              When set, mutt will fetch the set  of  subscribed  folders  from
              your  server on connection, and add them to the set of mailboxes
              it polls for new mail just  as  if  you  had  issued  individual
              "mailboxes" commands.

       imap_delim_chars
              Type: string
              Default: "/."
              This  contains  the  list  of characters which you would like to
              treat as folder separators for displaying IMAP paths. In partic-
              ular  it  helps  in using the "=" shortcut for your folder vari-
              able.

       imap_headers
              Type: string
              Default: ""
              Mutt requests these header fields in  addition  to  the  default
              headers  ("Date:",  "From:",  "Subject:",  "To:",  "Cc:",  "Mes-
              sage-Id:",  "References:",  "Content-Type:",   "Content-Descrip-
              tion:",  "In-Reply-To:",  "Reply-To:",  "Lines:",  "List-Post:",
              "X-Label:") from IMAP servers before displaying the index  menu.
              You may want to add more headers for spam detection.
              Note:  This is a space separated list, items should be uppercase
              and not contain the colon, e.g. "X-BOGOSITY  X-SPAM-STATUS"  for
              the "X-Bogosity:" and "X-Spam-Status:" header fields.

       imap_idle
              Type: boolean
              Default: no
              When  set,  mutt  will attempt to use the IMAP IDLE extension to
              check for new mail in the current mailbox. Some servers (dovecot
              was  the  inspiration  for  this  option)  react badly to mutt's
              implementation. If your connection seems to freeze  up  periodi-
              cally, try unsetting this.

       imap_keepalive
              Type: number
              Default: 900
              This  variable  specifies  the maximum amount of time in seconds
              that mutt will wait before polling  open  IMAP  connections,  to
              prevent  the  server  from closing them before mutt has finished
              with them. The default is well within the RFC-specified  minimum
              amount  of  time  (30  minutes) before a server is allowed to do
              this, but in practice the RFC does get violated  every  now  and
              then.  Reduce  this  number if you find yourself getting discon-
              nected from your IMAP server due to inactivity.

       imap_list_subscribed
              Type: boolean
              Default: no
              This variable configures whether IMAP folder browsing will  look
              for only subscribed folders or all folders.  This can be toggled
              in the IMAP browser with the <toggle-subscribed> function.

       imap_login
              Type: string
              Default: ""
              Your login name on the IMAP server.
              This variable defaults to the value of $imap_user.

       imap_pass
              Type: string
              Default: ""
              Specifies the password for your IMAP account.   If  unset,  Mutt
              will   prompt   you  for  your  password  when  you  invoke  the
              <imap-fetch-mail> function or try to open an IMAP folder.
              Warning: you should only use this  option  when  you  are  on  a
              fairly  secure machine, because the superuser can read your mut-
              trc even if you are the only one who can read the file.

       imap_passive
              Type: boolean
              Default: yes
              When set, mutt will not open new IMAP connections to  check  for
              new  mail.  Mutt will only check for new mail over existing IMAP
              connections.  This is useful if you don't want to be prompted to
              user/password  pairs  on mutt invocation, or if opening the con-
              nection is slow.

       imap_peek
              Type: boolean
              Default: yes
              When set, mutt will avoid implicitly marking your mail  as  read
              whenever  you fetch a message from the server. This is generally
              a good thing, but can  make  closing  an  IMAP  folder  somewhat
              slower. This option exists to appease speed freaks.

       imap_pipeline_depth
              Type: number
              Default: 15
              Controls  the  number  of  IMAP  commands  that may be queued up
              before they are sent to the server. A  deeper  pipeline  reduces
              the  amount  of time mutt must wait for the server, and can make
              IMAP servers feel much more responsive. But not all servers cor-
              rectly  handle  pipelined  commands, so if you have problems you
              might want to try setting this variable to 0.
              Note: Changes to this variable have no effect  on  open  connec-
              tions.

       imap_servernoise
              Type: boolean
              Default: yes
              When  set,  mutt  will  display  warning  messages from the IMAP
              server as error messages. Since these messages are  often  harm-
              less,  or  generated due to configuration problems on the server
              which are out of the users' hands, you may wish to suppress them
              at some point.

       imap_user
              Type: string
              Default: ""
              The name of the user whose mail you intend to access on the IMAP
              server.
              This variable defaults to your user name on the local machine.

       implicit_autoview
              Type: boolean
              Default: no
              If set to "yes", mutt will look for a  mailcap  entry  with  the
              "copiousoutput"  flag  set  for every MIME attachment it doesn't
              have an internal viewer defined for.  If such an entry is found,
              mutt  will  use  the viewer defined in that entry to convert the
              body part to text form.

       include
              Type: quadoption
              Default: ask-yes
              Controls whether or not a copy of the message(s) you are  reply-
              ing to is included in your reply.

       include_onlyfirst
              Type: boolean
              Default: no
              Controls  whether or not Mutt includes only the first attachment
              of the message you are replying.

       indent_string
              Type: string
              Default: "> "
              Specifies the string to prepend to each line of text quoted in a
              message  to which you are replying.  You are strongly encouraged
              not to change this value, as it tends to agitate the more fanat-
              ical netizens.
              The  value of this option is ignored if $text_flowed is set, too
              because the quoting  mechanism  is  strictly  defined  for  for-
              mat=flowed.
              This  option  is  a format string, please see the description of
              $index_format for supported printf(3)-style sequences.

       index_format
              Type: string
              Default: "%4C %Z %{%b %d} %-15.15L (%?l?%4l&%4c?) %s"
              This variable allows you to customize the message index  display
              to your personal taste.
              "Format  strings" are similar to the strings used in the C func-
              tion printf(3) to format output  (see  the  man  page  for  more
              details).  The following sequences are defined in Mutt:
              %a     address of the author
              %A     reply-to  address  (if  present;  otherwise:  address  of
                     author)
              %b     filename of the original message folder (think mailbox)
              %B     the list to which the letter was sent, or else the folder
                     name (%b).
              %c     number of characters (bytes) in the message
              %C     current message number
              %d     date  and  time of the message in the format specified by
                     $date_format converted to sender's time zone
              %D     date and time of the message in the format  specified  by
                     $date_format converted to the local time zone
              %e     current message number in thread
              %E     number of messages in current thread
              %f     sender   (address   +   real   name),   either  From:  or
                     Return-Path:
              %F     author name, or recipient name if the message is from you
              %H     spam attribute(s) of this message
              %i     message-id of the current message
              %l     number of lines  in  the  message  (does  not  work  with
                     maildir, mh, and possibly IMAP folders)
              %L     If  an address in the "To:" or "Cc:" header field matches
                     an address defined by the users "subscribe" command, this
                     displays "To <list-name>", otherwise the same as %F.
              %m     total number of message in the mailbox
              %M     number of hidden messages if the thread is collapsed.
              %N     message score
              %n     author's real name (or address if missing)
              %O     original  save  folder  where  mutt  would  formerly have
                     stashed the message: list name or recipient name  if  not
                     sent to a list
              %P     progress  indicator  for  the built-in pager (how much of
                     the file has been displayed)
              %s     subject of the message
              %S     status of the message ("N"/"D"/"d"/"!"/"r"/*)
              %t     "To:" field (recipients)
              %T     the appropriate character from the $to_chars string
              %u     user (login) name of the author
              %v     first name of the author, or the recipient if the message
                     is from you
              %X     number  of attachments (please see the "attachments" sec-
                     tion for possible speed effects)
              %y     "X-Label:" field, if present
              %Y     "X-Label:" field, if present, and (1) not at  part  of  a
                     thread  tree,  (2)  at  the  top  of  a  thread,  or  (3)
                     "X-Label:"  is   different   from   preceding   message's
                     "X-Label:".
              %Z     message status flags
              %{fmt} the date and time of the message is converted to sender's
                     time zone, and "fmt" is expanded by the library  function
                     strftime(3); a leading bang disables locales
              %[fmt] the  date  and  time  of  the message is converted to the
                     local time zone, and "fmt" is  expanded  by  the  library
                     function strftime(3); a leading bang disables locales
              %(fmt) the  local  date  and time when the message was received.
                     "fmt" is expanded by the library function strftime(3);  a
                     leading bang disables locales
              %<fmt> the  current local time. "fmt" is expanded by the library
                     function strftime(3); a leading bang disables locales.
              %>X    right justify the rest of the string and pad with charac-
                     ter "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad
              "Soft-fill"  deserves  some explanation: Normal right-justifica-
              tion will print everything to the left of the  "%>",  displaying
              padding  and whatever lies to the right only if there's room. By
              contrast, soft-fill gives priority to the right-hand side, guar-
              anteeing space to display it and showing padding only if there's
              still room. If necessary, soft-fill will eat text  leftwards  to
              make room for rightward text.
              Note  that  these  expandos  are supported in "save-hook", "fcc-
              hook" and "fcc-save-hook", too.

       ispell
              Type: path
              Default: "/usr/bin/hunspell"
              How to invoke ispell (GNU's spell-checking software).

       keep_flagged
              Type: boolean
              Default: no
              If set, read messages marked as flagged will not be  moved  from
              your  spool  mailbox  to your $mbox mailbox, or as a result of a
              "mbox-hook" command.

       locale
              Type: string
              Default: "C"
              The locale used by strftime(3) to format dates. Legal values are
              the strings your system accepts for the locale environment vari-
              able $LC_TIME.

       mail_check
              Type: number
              Default: 5
              This variable configures how often (in seconds) mutt should look
              for new mail. Also see the $timeout variable.

       mail_check_recent
              Type: boolean
              Default: yes
              When set, Mutt will only notify you about new mail that has been
              received since the last  time  you  opened  the  mailbox.   When
              unset,  Mutt will notify you if any new mail exists in the mail-
              box, regardless of whether you have visited it recently.
              When $mark_old is set, Mutt does not  consider  the  mailbox  to
              contain new mail if only old messages exist.

       mailcap_path
              Type: string
              Default: ""
              This  variable  specifies which files to consult when attempting
              to display MIME bodies not directly supported by Mutt.

       mailcap_sanitize
              Type: boolean
              Default: yes
              If set, mutt will restrict  possible  characters  in  mailcap  %
              expandos  to a well-defined set of safe characters.  This is the
              safe setting, but we are not sure it  doesn't  break  some  more
              advanced MIME stuff.
              DON'T  CHANGE  THIS  SETTING UNLESS YOU ARE REALLY SURE WHAT YOU
              ARE DOING!

       maildir_header_cache_verify
              Type: boolean
              Default: yes
              Check for Maildir unaware programs other than mutt having  modi-
              fied maildir files when the header cache is in use.  This incurs
              one stat(2) per message every time the folder is  opened  (which
              can be very slow for NFS folders).

       maildir_trash
              Type: boolean
              Default: no
              If  set,  messages  marked  as  deleted  will  be saved with the
              maildir trashed flag  instead  of  unlinked.   Note:  this  only
              applies  to  maildir-style  mailboxes.   Setting it will have no
              effect on other mailbox types.

       mark_old
              Type: boolean
              Default: yes
              Controls whether or not mutt marks new unread messages as old if
              you  exit a mailbox without reading them.  With this option set,
              the next time you start mutt, the messages will show up with  an
              "O"  next  to  them  in the index menu, indicating that they are
              old.

       markers
              Type: boolean
              Default: yes
              Controls the display of wrapped lines in the internal pager.  If
              set,  a  "+"  marker  is  displayed  at the beginning of wrapped
              lines.
              Also see the $smart_wrap variable.

       mask
              Type: regular expression
              Default: "!^\.[^.]"
              A regular expression used in the file browser,  optionally  pre-
              ceded  by  the  not  operator "!".  Only files whose names match
              this mask will be shown. The match is always case-sensitive.

       mbox
              Type: path
              Default: "~/mbox"
              This  specifies  the  folder  into  which  read  mail  in   your
              $spoolfile folder will be appended.
              Also see the $move variable.

       mbox_type
              Type: folder magic
              Default: mbox
              The  default mailbox type used when creating new folders. May be
              any of "mbox", "MMDF", "MH" and "Maildir". This is overridden by
              the -m command-line option.

       menu_context
              Type: number
              Default: 0
              This  variable  controls the number of lines of context that are
              given when scrolling through menus. (Similar to $pager_context.)

       menu_move_off
              Type: boolean
              Default: yes
              When unset, the bottom entry of menus will never scroll up  past
              the  bottom  of  the  screen, unless there are less entries than
              lines.  When set, the bottom entry may move off the bottom.

       menu_scroll
              Type: boolean
              Default: no
              When set, menus will be scrolled up or down one  line  when  you
              attempt  to move across a screen boundary.  If unset, the screen
              is cleared and the next or previous page of  the  menu  is  dis-
              played (useful for slow links to avoid many redraws).

       message_cache_clean
              Type: boolean
              Default: no
              If  set,  mutt  will clean out obsolete entries from the message
              cache when the mailbox is synchronized. You probably  only  want
              to  set  it every once in a while, since it can be a little slow
              (especially for large folders).

       message_cachedir
              Type: path
              Default: ""
              Set this to a directory and mutt will cache copies  of  messages
              from  your  IMAP  and  POP  servers here. You are free to remove
              entries at any time.
              When setting this variable to a directory, mutt needs  to  fetch
              every  remote  message only once and can perform regular expres-
              sion searches as fast as for local folders.
              Also see the $message_cache_clean variable.

       message_format
              Type: string
              Default: "%s"
              This is the  string  displayed  in  the  "attachment"  menu  for
              attachments  of  type  message/rfc822.   For  a  full listing of
              defined printf(3)-like sequences see the section on  $index_for-
              mat.

       meta_key
              Type: boolean
              Default: no
              If  set,  forces  Mutt to interpret keystrokes with the high bit
              (bit 8) set as if the user had pressed the Esc key and  whatever
              key  remains after having the high bit removed.  For example, if
              the key pressed has an ASCII value of 0xf8, then this is treated
              as  if  the  user had pressed Esc then "x".  This is because the
              result of removing the high bit from 0xf8 is 0x78, which is  the
              ASCII character "x".

       metoo
              Type: boolean
              Default: no
              If  unset,  Mutt  will remove your address (see the "alternates"
              command) from the list of recipients when replying to a message.

       mh_purge
              Type: boolean
              Default: no
              When unset, mutt will mimic mh's  behavior  and  rename  deleted
              messages  to  ,<old  file  name> in mh folders instead of really
              deleting them. This leaves the message on disk  but  makes  pro-
              grams  reading the folder ignore it. If the variable is set, the
              message files will simply be deleted.
              This option is similar to $maildir_trash for Maildir folders.

       mh_seq_flagged
              Type: string
              Default: "flagged"
              The name of the MH sequence used for flagged messages.

       mh_seq_replied
              Type: string
              Default: "replied"
              The name of the MH sequence used to tag replied messages.

       mh_seq_unseen
              Type: string
              Default: "unseen"
              The name of the MH sequence used for unseen messages.

       mime_forward
              Type: quadoption
              Default: no
              When set, the message you are forwarding will be attached  as  a
              separate  message/rfc822  MIME  part  instead of included in the
              main body of the message.  This is useful  for  forwarding  MIME
              messages so the receiver can properly view the message as it was
              delivered to you. If you like to switch  between  MIME  and  not
              MIME  from  mail  to  mail,  set  this  variable  to "ask-no" or
              "ask-yes".
              Also see $forward_decode and $mime_forward_decode.

       mime_forward_decode
              Type: boolean
              Default: no
              Controls the decoding of complex MIME messages  into  text/plain
              when  forwarding a message while $mime_forward is set. Otherwise
              $forward_decode is used instead.

       mime_forward_rest
              Type: quadoption
              Default: yes
              When forwarding multiple attachments of a MIME message from  the
              attachment  menu,  attachments which cannot be decoded in a rea-
              sonable manner will be attached to the newly composed message if
              this option is set.

       move
              Type: quadoption
              Default: no
              Controls  whether  or not Mutt will move read messages from your
              spool mailbox to your $mbox mailbox, or as a result of a  "mbox-
              hook" command.

       narrow_tree
              Type: boolean
              Default: no
              This  variable, when set, makes the thread tree narrower, allow-
              ing deeper threads to fit on the screen.

       net_inc
              Type: number
              Default: 10
              Operations that expect to transfer a large amount of  data  over
              the network will update their progress every $net_inc kilobytes.
              If set to 0, no progress messages will be displayed.
              See also $read_inc, $write_inc and $net_inc.

       pager
              Type: path
              Default: "builtin"
              This variable specifies which pager you would  like  to  use  to
              view  messages.  The  value  "builtin" means to use the built-in
              pager, otherwise this variable should specify  the  pathname  of
              the external pager you would like to use.
              Using  an external pager may have some disadvantages: Additional
              keystrokes are necessary because you can't call  mutt  functions
              directly  from  the pager, and screen resizes cause lines longer
              than the screen width to be badly formatted in the help menu.

       pager_context
              Type: number
              Default: 0
              This variable controls the number of lines of context  that  are
              given  when displaying the next or previous page in the internal
              pager.  By default, Mutt will display the line  after  the  last
              one  on  the screen at the top of the next page (0 lines of con-
              text).
              This variable also specifies the amount  of  context  given  for
              search  results.  If  positive,  this  many  lines will be given
              before a match, if 0, the match will be top-aligned.

       pager_format
              Type: string
              Default: "-%Z- %C/%m: %-20.20n   %s%*  -- (%P)"
              This variable controls the format of the one-line message  "sta-
              tus"  displayed before each message in either the internal or an
              external  pager.   The  valid  sequences  are  listed   in   the
              $index_format section.

       pager_index_lines
              Type: number
              Default: 0
              Determines  the  number  of lines of a mini-index which is shown
              when in the pager.  The current message, unless near the top  or
              bottom  of the folder, will be roughly one third of the way down
              this mini-index, giving the reader the context of a few messages
              before  and  after the message.  This is useful, for example, to
              determine how many messages remain to be  read  in  the  current
              thread.   One  of  the lines is reserved for the status bar from
              the index, so a setting of 6 will  only  show  5  lines  of  the
              actual index.  A value of 0 results in no index being shown.  If
              the number of messages  in  the  current  folder  is  less  than
              $pager_index_lines,  then  the index will only use as many lines
              as it needs.

       pager_stop
              Type: boolean
              Default: no
              When set, the internal-pager will not move to the  next  message
              when  you are at the end of a message and invoke the <next-page>
              function.

       pgp_auto_decode
              Type: boolean
              Default: no
              If set, mutt will automatically attempt to  decrypt  traditional
              PGP messages whenever the user performs an operation which ordi-
              narily would result in the contents of the message  being  oper-
              ated  on.   For  example, if the user displays a pgp-traditional
              message which has not been manually checked with the <check-tra-
              ditional-pgp>  function,  mutt will automatically check the mes-
              sage for traditional pgp.

       pgp_autoinline
              Type: boolean
              Default: no
              This option controls whether  Mutt  generates  old-style  inline
              (traditional)  PGP  encrypted  or  signed messages under certain
              circumstances.  This can be overridden by use of the  pgp  menu,
              when inline is not required.
              Note  that  Mutt  might  automatically use PGP/MIME for messages
              which consist of more than a single MIME part.  Mutt can be con-
              figured  to  ask  before  sending  PGP/MIME messages when inline
              (traditional) would not work.
              Also see the $pgp_mime_auto variable.
              Also note  that  using  the  old-style  PGP  message  format  is
              strongly deprecated.  (PGP only)

       pgp_check_exit
              Type: boolean
              Default: yes
              If set, mutt will check the exit code of the PGP subprocess when
              signing or encrypting.  A non-zero exit code means that the sub-
              process failed.  (PGP only)

       pgp_clearsign_command
              Type: string
              Default: ""
              This  format  is  used  to create an old-style "clearsigned" PGP
              message.  Note that the use of this format  is  strongly  depre-
              cated.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_decode_command
              Type: string
              Default: ""
              This format strings specifies a command which is used to  decode
              application/pgp attachments.
              The  PGP  command  formats  have their own set of printf(3)-like
              sequences:
              %p     Expands to PGPPASSFD=0 when a pass phrase is  needed,  to
                     an  empty string otherwise. Note: This may be used with a
                     %? construct.
              %f     Expands to the name of a file containing a message.
              %s     Expands to the name of a file  containing  the  signature
                     part
                                of  a multipart/signed attachment when verify-
                     ing it.
              %a     The value of $pgp_sign_as.
              %r     One or more key IDs.
              For examples on how to configure these formats for  the  various
              versions  of  PGP which are floating around, see the pgp and gpg
              sample configuration files in the  samples/  subdirectory  which
              has  been  installed on your system alongside the documentation.
              (PGP only)

       pgp_decrypt_command
              Type: string
              Default: ""
              This command is used to decrypt a PGP encrypted message.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_encrypt_only_command
              Type: string
              Default: ""
              This command is used to encrypt a body part without signing it.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_encrypt_sign_command
              Type: string
              Default: ""
              This command is used to both sign and encrypt a body part.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_entry_format
              Type: string
              Default: "%4n %t%f %4l/0x%k %-4a %2c %u"
              This variable allows you to customize the PGP key selection menu
              to your personal taste. This string is similar to $index_format,
              but has its own set of printf(3)-like sequences:
              %n     number
              %k     key id
              %u     user id
              %a     algorithm
              %l     key length
              %f     flags
              %c     capabilities
              %t     trust/validity of the key-uid association
              %[<s>] date of the key where <s> is an strftime(3) expression
              (PGP only)

       pgp_export_command
              Type: string
              Default: ""
              This  command is used to export a public key from the user's key
              ring.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_getkeys_command
              Type: string
              Default: ""
              This  command  is  invoked  whenever  mutt  will need public key
              information.  Of the sequences supported by $pgp_decode_command,
              %r  is  the  only printf(3)-like sequence used with this format.
              (PGP only)

       pgp_good_sign
              Type: regular expression
              Default: ""
              If you assign a text to this variable, then a PGP  signature  is
              only  considered verified if the output from $pgp_verify_command
              contains the text. Use this variable if the exit code  from  the
              command is 0 even for bad signatures.  (PGP only)

       pgp_ignore_subkeys
              Type: boolean
              Default: yes
              Setting this variable will cause Mutt to ignore OpenPGP subkeys.
              Instead, the principal key will inherit the  subkeys'  capabili-
              ties.   Unset this if you want to play interesting key selection
              games.  (PGP only)

       pgp_import_command
              Type: string
              Default: ""
              This command is used to import a key from  a  message  into  the
              user's public key ring.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_list_pubring_command
              Type: string
              Default: ""
              This command is used to list the  public  key  ring's  contents.
              The output format must be analogous to the one used by

              gpg --list-keys --with-colons.

              This format is also generated by the pgpring utility which comes
              with mutt.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_list_secring_command
              Type: string
              Default: ""
              This  command  is  used  to list the secret key ring's contents.
              The output format must be analogous to the one used by:

              gpg --list-keys --with-colons.

              This format is also generated by the pgpring utility which comes
              with mutt.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_long_ids
              Type: boolean
              Default: no
              If set, use 64 bit PGP key IDs, if unset use the normal  32  bit
              key IDs.  (PGP only)

       pgp_mime_auto
              Type: quadoption
              Default: ask-yes
              This  option controls whether Mutt will prompt you for automati-
              cally sending a (signed/encrypted) message using  PGP/MIME  when
              inline (traditional) fails (for any reason).
              Also  note  that  using  the  old-style  PGP  message  format is
              strongly deprecated.  (PGP only)

       pgp_replyinline
              Type: boolean
              Default: no
              Setting this variable will cause Mutt to always attempt to  cre-
              ate  an  inline (traditional) message when replying to a message
              which is PGP encrypted/signed inline.  This can be overridden by
              use  of  the pgp menu, when inline is not required.  This option
              does not automatically detect if  the  (replied-to)  message  is
              inline;  instead  it  relies  on  Mutt  internals for previously
              checked/flagged messages.
              Note that Mutt might automatically  use  PGP/MIME  for  messages
              which consist of more than a single MIME part.  Mutt can be con-
              figured to ask before  sending  PGP/MIME  messages  when  inline
              (traditional) would not work.
              Also see the $pgp_mime_auto variable.
              Also  note  that  using  the  old-style  PGP  message  format is
              strongly deprecated.  (PGP only)

       pgp_retainable_sigs
              Type: boolean
              Default: no
              If set, signed and encrypted messages  will  consist  of  nested
              multipart/signed and multipart/encrypted body parts.
              This  is useful for applications like encrypted and signed mail-
              ing lists, where the outer layer  (multipart/encrypted)  can  be
              easily   removed,  while  the  inner  multipart/signed  part  is
              retained.  (PGP only)

       pgp_show_unusable
              Type: boolean
              Default: yes
              If set, mutt will display non-usable keys on the PGP key  selec-
              tion  menu.   This  includes  keys which have been revoked, have
              expired, or have been marked as "disabled" by  the  user.   (PGP
              only)

       pgp_sign_as
              Type: string
              Default: ""
              If  you  have  more than one key pair, this option allows you to
              specify which of your private keys to use.   It  is  recommended
              that   you  use  the  keyid  form  to  specify  your  key  (e.g.
              0x00112233).  (PGP only)

       pgp_sign_command
              Type: string
              Default: ""
              This command is used to create the detached PGP signature for  a
              multipart/signed PGP/MIME body part.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_sort_keys
              Type: sort order
              Default: address
              Specifies how the entries in the pgp menu are sorted.  The  fol-
              lowing are legal values:
              address
                     sort alphabetically by user id
              keyid  sort alphabetically by key id
              date   sort by key creation date
              trust  sort by the trust of the key
              If  you prefer reverse order of the above values, prefix it with
              "reverse-".  (PGP only)

       pgp_strict_enc
              Type: boolean
              Default: yes
              If set, Mutt will automatically encode PGP/MIME signed  messages
              as  quoted-printable.   Please note that unsetting this variable
              may lead to problems with non-verifyable PGP signatures, so only
              change this if you know what you are doing.  (PGP only)

       pgp_timeout
              Type: number
              Default: 300
              The  number  of  seconds  after  which  a cached passphrase will
              expire if not used.  (PGP only)

       pgp_use_gpg_agent
              Type: boolean
              Default: no
              If set, mutt will use a possibly-running  gpg-agent(1)  process.
              (PGP only)

       pgp_verify_command
              Type: string
              Default: ""
              This command is used to verify PGP signatures.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_verify_key_command
              Type: string
              Default: ""
              This command is used to verify  key  information  from  the  key
              selection menu.
              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pipe_decode
              Type: boolean
              Default: no
              Used in connection with the <pipe-message> command.  When unset,
              Mutt will pipe the messages without any preprocessing. When set,
              Mutt will weed headers and will attempt to decode  the  messages
              first.

       pipe_sep
              Type: string
              Default: "\n"
              The  separator  to  add  between  messages when piping a list of
              tagged messages to an external Unix command.

       pipe_split
              Type: boolean
              Default: no
              Used in connection with the  <pipe-message>  function  following
              <tag-prefix>.   If this variable is unset, when piping a list of
              tagged messages Mutt will concatenate the messages and will pipe
              them  all  concatenated.   When set, Mutt will pipe the messages
              one by one.  In both cases the messages are piped in the current
              sorted  order,  and  the $pipe_sep separator is added after each
              message.

       pop_auth_try_all
              Type: boolean
              Default: yes
              If set, Mutt will  try  all  available  authentication  methods.
              When  unset,  Mutt  will  only fall back to other authentication
              methods if the previous methods are unavailable. If a method  is
              available but authentication fails, Mutt will not connect to the
              POP server.

       pop_authenticators
              Type: string
              Default: ""
              This is a colon-delimited list of  authentication  methods  mutt
              may attempt to use to log in to an POP server, in the order mutt
              should try them.   Authentication  methods  are  either  "user",
              "apop"  or  any  SASL  mechanism, e.g. "digest-md5", "gssapi" or
              "cram-md5".  This option is case-insensitive. If this option  is
              unset  (the  default)  mutt  will  try all available methods, in
              order from most-secure to least-secure.
              Example:

              set pop_authenticators="digest-md5:apop:user"


       pop_checkinterval
              Type: number
              Default: 60
              This variable configures how often (in seconds) mutt should look
              for  new  mail  in the currently selected mailbox if it is a POP
              mailbox.

       pop_delete
              Type: quadoption
              Default: ask-no
              If set, Mutt will delete successfully downloaded  messages  from
              the  POP  server  when  using  the  <fetch-mail> function.  When
              unset, Mutt will download messages but also leave  them  on  the
              POP server.

       pop_host
              Type: string
              Default: ""
              The  name of your POP server for the <fetch-mail> function.  You
              can also specify an alternative  port,  username  and  password,
              i.e.:

              [pop[s]://][username[:password]@]popserver[:port]

              where "[...]" denotes an optional part.

       pop_last
              Type: boolean
              Default: no
              If  this  variable  is  set, mutt will try to use the "LAST" POP
              command for retrieving only unread messages from the POP  server
              when using the <fetch-mail> function.

       pop_pass
              Type: string
              Default: ""
              Specifies  the  password  for  your POP account.  If unset, Mutt
              will prompt you for your password when you open a POP mailbox.
              Warning: you should only use this  option  when  you  are  on  a
              fairly  secure machine, because the superuser can read your mut-
              trc even if you are the only one who can read the file.

       pop_reconnect
              Type: quadoption
              Default: ask-yes
              Controls whether or not Mutt will try to reconnect  to  the  POP
              server if the connection is lost.

       pop_user
              Type: string
              Default: ""
              Your login name on the POP server.
              This variable defaults to your user name on the local machine.

       post_indent_string
              Type: string
              Default: ""
              Similar  to  the  $attribution  variable,  Mutt will append this
              string after the inclusion of a message which is  being  replied
              to.

       postpone
              Type: quadoption
              Default: ask-yes
              Controls  whether  or  not  messages are saved in the $postponed
              mailbox when you elect not to send immediately.
              Also see the $recall variable.

       postponed
              Type: path
              Default: "~/postponed"
              Mutt allows you to indefinitely  "postpone  sending  a  message"
              which  you  are editing.  When you choose to postpone a message,
              Mutt saves it in the mailbox specified by this variable.
              Also see the $postpone variable.

       preconnect
              Type: string
              Default: ""
              If set, a shell command to be executed if mutt fails  to  estab-
              lish  a  connection to the server. This is useful for setting up
              secure connections, e.g. with ssh(1). If the command  returns  a
              nonzero status, mutt gives up opening the server. Example:

              set preconnect="ssh -f -q -L 1234:mailhost.net:143 mailhost.net \
              sleep 20 < /dev/null > /dev/null"

              Mailbox  "foo"  on "mailhost.net" can now be reached as "{local-
              host:1234}foo".
              Note: For this example to work, you must be able to  log  in  to
              the remote machine without having to enter a password.

       print
              Type: quadoption
              Default: ask-no
              Controls  whether  or  not Mutt really prints messages.  This is
              set to "ask-no" by default, because some people accidentally hit
              "p" often.

       print_command
              Type: path
              Default: "lpr"
              This  specifies  the  command  pipe that should be used to print
              messages.

       print_decode
              Type: boolean
              Default: yes
              Used in connection with the <print-message>  command.   If  this
              option is set, the message is decoded before it is passed to the
              external command specified by $print_command.  If this option is
              unset,  no processing will be applied to the message when print-
              ing it.  The latter setting may be useful if you are using  some
              advanced  printer filter which is able to properly format e-mail
              messages for printing.

       print_split
              Type: boolean
              Default: no
              Used in connection with the <print-message>  command.   If  this
              option  is  set, the command specified by $print_command is exe-
              cuted once for each message which is to  be  printed.   If  this
              option is unset, the command specified by $print_command is exe-
              cuted only once, and all the messages are concatenated,  with  a
              form feed as the message separator.
              Those  who use the enscript(1) program's mail-printing mode will
              most likely want to set this option.

       prompt_after
              Type: boolean
              Default: yes
              If you use an external $pager, setting this variable will  cause
              Mutt  to  prompt  you  for a command when the pager exits rather
              than returning to the index menu.  If unset, Mutt will return to
              the index menu when the external pager exits.

       query_command
              Type: path
              Default: ""
              This  specifies  the  command  Mutt  will  use  to make external
              address queries.  The string may contain a "%s", which  will  be
              substituted with the query string the user types.  Mutt will add
              quotes around the  string  substituted  for  "%s"  automatically
              according  to  shell  quoting  rules, so you should avoid adding
              your own.  If no "%s" is found in the string, Mutt  will  append
              the user's query to the end of the string.  See "query" for more
              information.

       query_format
              Type: string
              Default: "%4c %t %-25.25a %-25.25n %?e?(%e)?"
              This variable describes the format of the "query" menu. The fol-
              lowing printf(3)-style sequences are understood:
              %a     destination address
              %c     current entry number
              %e     extra information *
              %n     destination name
              %t     "*" if current entry is tagged, a space otherwise
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad
              For  an  explanation of "soft-fill", see the $index_format docu-
              mentation.
              * = can be optionally printed if nonzero, see the $status_format
              documentation.

       quit
              Type: quadoption
              Default: yes
              This  variable  controls whether "quit" and "exit" actually quit
              from mutt.  If this option is set, they do quit, if it is unset,
              they  have no effect, and if it is set to ask-yes or ask-no, you
              are prompted for confirmation when you try to quit.

       quote_regexp
              Type: regular expression
              Default: "^([ \t]*[|>:}#])+"
              A regular expression used in the  internal  pager  to  determine
              quoted  sections  of  text in the body of a message. Quoted text
              may be filtered out using the <toggle-quoted> command,  or  col-
              ored according to the "color quoted" family of directives.
              Higher  levels  of  quoting  may  be colored differently ("color
              quoted1", "color quoted2", etc.). The quoting  level  is  deter-
              mined  by  removing the last character from the matched text and
              recursively reapplying the regular expression until it fails  to
              produce a match.
              Match  detection  may  be  overridden  by  the  $smileys regular
              expression.

       read_inc
              Type: number
              Default: 10
              If set to a value greater than 0, Mutt will display  which  mes-
              sage  it is currently on when reading a mailbox or when perform-
              ing search actions such as search  and  limit.  The  message  is
              printed  after  this  many  messages  have been read or searched
              (e.g., if set to 25, Mutt will print a message  when  it  is  at
              message  25,  and  then again when it gets to message 50).  This
              variable is meant to indicate progress when reading or searching
              large mailboxes which may take some time.  When set to 0, only a
              single message will appear before the reading the mailbox.
              Also see the $write_inc, $net_inc and  $time_inc  variables  and
              the  "tuning"  section  of the manual for performance considera-
              tions.

       read_only
              Type: boolean
              Default: no
              If set, all folders are opened in read-only mode.

       realname
              Type: string
              Default: ""
              This variable specifies what "real" or "personal" name should be
              used when sending messages.
              By default, this is the GECOS field from /etc/passwd.  Note that
              this variable will not be used when the user has set a real name
              in the $from variable.

       recall
              Type: quadoption
              Default: ask-yes
              Controls  whether  or  not  Mutt recalls postponed messages when
              composing a new message.
              Setting this variable to is not generally useful, and  thus  not
              recommended.
              Also see $postponed variable.

       record
              Type: path
              Default: "~/sent"
              This specifies the file into which your outgoing messages should
              be appended.  (This is meant as the primary method for saving  a
              copy  of  your messages, but another way to do this is using the
              "my_hdr" command to  create  a  "Bcc:"  field  with  your  email
              address in it.)
              The  value  of  $record  is  overridden  by  the $force_name and
              $save_name variables, and the "fcc-hook" command.

       reply_regexp
              Type: regular expression
              Default: "^(re([\[0-9\]+])*|aw):[ \t]*"
              A regular expression  used  to  recognize  reply  messages  when
              threading  and  replying.  The  default value corresponds to the
              English "Re:" and the German "Aw:".

       reply_self
              Type: boolean
              Default: no
              If unset and you are replying to a message  sent  by  you,  Mutt
              will  assume  that  you  want to reply to the recipients of that
              message rather than to yourself.
              Also see the "alternates" command.

       reply_to
              Type: quadoption
              Default: ask-yes
              If set, when replying to a message, Mutt will  use  the  address
              listed  in  the  Reply-to: header as the recipient of the reply.
              If unset, it will use the address  in  the  From:  header  field
              instead.   This option is useful for reading a mailing list that
              sets the Reply-To: header field to the list address and you want
              to send a private message to the author of a message.

       resolve
              Type: boolean
              Default: yes
              When  set, the cursor will be automatically advanced to the next
              (possibly undeleted) message whenever a  command  that  modifies
              the current message is executed.

       reverse_alias
              Type: boolean
              Default: no
              This  variable  controls  whether  or  not Mutt will display the
              "personal" name from your aliases in the index menu if it  finds
              an alias that matches the message's sender.  For example, if you
              have the following alias:

              alias juser abd30425 AT somewhere.net (Joe User)

              and then you receive mail which contains the following header:

              From: abd30425 AT somewhere.net

              It would be displayed in the index menu as "Joe User" instead of
              "abd30425 AT somewhere.net."   This  is  useful  when  the person's
              e-mail address is not human friendly.

       reverse_name
              Type: boolean
              Default: no
              It may sometimes arrive that  you  receive  mail  to  a  certain
              machine, move the messages to another machine, and reply to some
              the messages from there.  If this variable is set,  the  default
              From:  line  of  the  reply  messages is built using the address
              where you received the messages you  are  replying  to  if  that
              address matches your "alternates".  If the variable is unset, or
              the address that would be used doesn't match your  "alternates",
              the From: line will use your address on the current machine.
              Also see the "alternates" command.

       reverse_realname
              Type: boolean
              Default: yes
              This  variable fine-tunes the behavior of the $reverse_name fea-
              ture.  When it is set, mutt will use the address  from  incoming
              messages as-is, possibly including eventual real names.  When it
              is unset, mutt will override any such real names with  the  set-
              ting of the $realname variable.

       rfc2047_parameters
              Type: boolean
              Default: no
              When this variable is set, Mutt will decode RFC2047-encoded MIME
              parameters. You want to set this variable when mutt suggests you
              to save attachments to files named like:

              =?iso-8859-1?Q?file=5F=E4=5F991116=2Ezip?=

              When  this  variable  is  set interactively, the change won't be
              active until you change folders.
              Note that this use of RFC2047's encoding is  explicitly  prohib-
              ited by the standard, but nevertheless encountered in the wild.
              Also  note  that setting this parameter will not have the effect
              that mutt generates this kind of encoding.  Instead,  mutt  will
              unconditionally use the encoding specified in RFC2231.

       save_address
              Type: boolean
              Default: no
              If set, mutt will take the sender's full address when choosing a
              default folder for saving a mail. If $save_name  or  $force_name
              is  set  too, the selection of the Fcc folder will be changed as
              well.

       save_empty
              Type: boolean
              Default: yes
              When unset, mailboxes which contain no saved  messages  will  be
              removed  when closed (the exception is $spoolfile which is never
              removed).  If set, mailboxes are never removed.
              Note: This only applies to mbox and MMDF folders, Mutt does  not
              delete MH and Maildir directories.

       save_history
              Type: number
              Default: 0
              This  variable  controls  the size of the history (per category)
              saved in the $history_file file.

       save_name
              Type: boolean
              Default: no
              This variable controls  how  copies  of  outgoing  messages  are
              saved.   When set, a check is made to see if a mailbox specified
              by the recipient address exists (this is done by searching for a
              mailbox  in  the $folder directory with the username part of the
              recipient address).  If the mailbox exists, the outgoing message
              will be saved to that mailbox, otherwise the message is saved to
              the $record mailbox.
              Also see the $force_name variable.

       score
              Type: boolean
              Default: yes
              When this variable is unset, scoring is turned off.  This can be
              useful  to  selectively disable scoring for certain folders when
              the $score_threshold_delete variable and related are used.

       score_threshold_delete
              Type: number
              Default: -1
              Messages which have been assigned a score equal to or lower than
              the value of this variable are automatically marked for deletion
              by mutt.  Since mutt scores are always greater than or equal  to
              zero,  the  default  setting  of this variable will never mark a
              message for deletion.

       score_threshold_flag
              Type: number
              Default: 9999
              Messages which have been assigned a score greater than or  equal
              to this variable's value are automatically marked "flagged".

       score_threshold_read
              Type: number
              Default: -1
              Messages which have been assigned a score equal to or lower than
              the value of this variable are automatically marked as  read  by
              mutt.   Since  mutt  scores  are always greater than or equal to
              zero, the default setting of this variable  will  never  mark  a
              message read.

       search_context
              Type: number
              Default: 0
              For the pager, this variable specifies the number of lines shown
              before search  results.  By  default,  search  results  will  be
              top-aligned.

       send_charset
              Type: string
              Default: "us-ascii:iso-8859-1:utf-8"
              A  colon-delimited list of character sets for outgoing messages.
              Mutt will use the first character set into which the text can be
              converted  exactly.   If  your  $charset is not "iso-8859-1" and
              recipients may  not  understand  "UTF-8",  it  is  advisable  to
              include  in the list an appropriate widely used standard charac-
              ter set (such as "iso-8859-2", "koi8-r" or "iso-2022-jp") either
              instead of or after "iso-8859-1".
              In  case the text cannot be converted into one of these exactly,
              mutt uses $charset as a fallback.

       sendmail
              Type: path
              Default: "/usr/sbin/sendmail -oem -oi"
              Specifies the program and arguments used to deliver mail sent by
              Mutt.   Mutt expects that the specified program interprets addi-
              tional arguments as recipient addresses.

       sendmail_wait
              Type: number
              Default: 0
              Specifies the number  of  seconds  to  wait  for  the  $sendmail
              process  to  finish before giving up and putting delivery in the
              background.
              Mutt interprets the value of this variable as follows:
              >0     number of seconds to wait for sendmail to  finish  before
                     continuing
              0      wait forever for sendmail to finish
              <0     always put sendmail in the background without waiting
              Note that if you specify a value other than 0, the output of the
              child process will be put in a temporary file.  If there is some
              error, you will be informed as to where to find the output.

       shell
              Type: path
              Default: ""
              Command to use when spawning a subshell.  By default, the user's
              login shell from /etc/passwd is used.

       sig_dashes
              Type: boolean
              Default: yes
              If set, a line containing "-- " (note the trailing  space)  will
              be  inserted before your $signature.  It is strongly recommended
              that you not unset this variable unless your signature  contains
              just  your  name.   The reason for this is because many software
              packages use "-- \n" to detect  your  signature.   For  example,
              Mutt  has  the ability to highlight the signature in a different
              color in the built-in pager.

       sig_on_top
              Type: boolean
              Default: no
              If set, the signature will be included before any quoted or for-
              warded  text.   It  is  strongly recommended that you do not set
              this variable unless you really know what you are doing, and are
              prepared to take some heat from netiquette guardians.

       signature
              Type: path
              Default: "~/.signature"
              Specifies  the  filename of your signature, which is appended to
              all outgoing messages.   If the filename ends with a pipe ("|"),
              it  is assumed that filename is a shell command and input should
              be read from its standard output.

       simple_search
              Type: string
              Default: "~f %s | ~s %s"
              Specifies how Mutt should expand a simple  search  into  a  real
              search  pattern.   A  simple search is one that does not contain
              any of the "~"  pattern  operators.   See  "patterns"  for  more
              information on search patterns.
              For  example,  if  you  simply  type  "joe" at a search or limit
              prompt, Mutt will automatically expand it to the value specified
              by  this  variable  by  replacing "%s" with the supplied string.
              For the default value, "joe" would be expanded to: "~f joe |  ~s
              joe".

       sleep_time
              Type: number
              Default: 1
              Specifies  time,  in  seconds, to pause while displaying certain
              informational messages, while moving from folder to  folder  and
              after  expunging  messages from the current folder.  The default
              is to pause one second, so a value of zero for this option  sup-
              presses the pause.

       smart_wrap
              Type: boolean
              Default: yes
              Controls  the  display  of lines longer than the screen width in
              the internal pager. If set, long lines are  wrapped  at  a  word
              boundary.   If  unset,  lines  are  simply wrapped at the screen
              edge. Also see the $markers variable.

       smileys
              Type: regular expression
              Default: "(>From )|(:[-^]?[][)(><}{|/DP])"
              The pager uses this variable to catch some  common  false  posi-
              tives  of $quote_regexp, most notably smileys and not consider a
              line quoted text if it also matches $smileys. This  mostly  hap-
              pens at the beginning of a line.

       smime_ask_cert_label
              Type: boolean
              Default: yes
              This flag controls whether you want to be asked to enter a label
              for a certificate about to be added to the database or  not.  It
              is set by default.  (S/MIME only)

       smime_ca_location
              Type: path
              Default: ""
              This variable contains the name of either a directory, or a file
              which  contains  trusted  certificates  for  use  with  OpenSSL.
              (S/MIME only)

       smime_certificates
              Type: path
              Default: ""
              Since  for  S/MIME there is no pubring/secring as with PGP, mutt
              has to handle storage and retrieval of keys by itself.  This  is
              very  basic  right  now, and keys and certificates are stored in
              two  different  directories,  both  named  as   the   hash-value
              retrieved  from  OpenSSL.  There is an index file which contains
              mailbox-address keyid pairs, and which can be  manually  edited.
              This option points to the location of the certificates.  (S/MIME
              only)

       smime_decrypt_command
              Type: string
              Default: ""
              This format string specifies a command which is used to  decrypt
              application/x-pkcs7-mime attachments.
              The OpenSSL command formats have their own set of printf(3)-like
              sequences similar to PGP's:
              %f     Expands to the name of a file containing a message.
              %s     Expands to the name of a file  containing  the  signature
                     part
                                of  a multipart/signed attachment when verify-
                     ing it.
              %k     The key-pair specified with $smime_default_key
              %c     One or more certificate IDs.
              %a     The algorithm used for encryption.
              %C     CA location:  Depending on whether $smime_ca_location
                                points to a directory or file, this expands to
                                "-CApath   $smime_ca_location"   or   "-CAfile
                     $smime_ca_location".
              For examples on how to configure these formats, see the smime.rc
              in the samples/ subdirectory which has been  installed  on  your
              system alongside the documentation.  (S/MIME only)

       smime_decrypt_use_default_key
              Type: boolean
              Default: yes
              If  set  (default)  this  tells  mutt to use the default key for
              decryption.   Otherwise,   if   managing    multiple    certifi-
              cate-key-pairs,  mutt  will  try  to  use the mailbox-address to
              determine the key to use. It will ask you to supply a key, if it
              can't find one.  (S/MIME only)

       smime_default_key
              Type: string
              Default: ""
              This  is  the  default key-pair to use for signing. This must be
              set to the keyid (the hash-value that OpenSSL generates) to work
              properly (S/MIME only)

       smime_encrypt_command
              Type: string
              Default: ""
              This command is used to create encrypted S/MIME messages.
              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_encrypt_with
              Type: string
              Default: ""
              This sets the algorithm that  should  be  used  for  encryption.
              Valid  choices are "des", "des3", "rc2-40", "rc2-64", "rc2-128".
              If unset, "3des" (TripleDES) is used.  (S/MIME only)

       smime_get_cert_command
              Type: string
              Default: ""
              This command is used to extract X509 certificates from  a  PKCS7
              structure.
              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_get_cert_email_command
              Type: string
              Default: ""
              This command is used to extract the mail  address(es)  used  for
              storing  X509  certificates,  and  for verification purposes (to
              check whether the certificate was issued for the sender's  mail-
              box).
              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_get_signer_cert_command
              Type: string
              Default: ""
              This command is used to extract only the signers  X509  certifi-
              cate  from  a  S/MIME signature, so that the certificate's owner
              may get compared to the email's "From:" field.
              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_import_cert_command
              Type: string
              Default: ""
              This command is used to import a certificate via smime_keys.
              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_is_default
              Type: boolean
              Default: no
              The  default  behavior  of  mutt  is   to   use   PGP   on   all
              auto-sign/encryption  operations. To override and to use OpenSSL
              instead this must be set.  However, this  has  no  effect  while
              replying, since mutt will automatically select the same applica-
              tion that was used to sign/encrypt the original message.   (Note
              that    this   variable   can   be   overridden   by   unsetting
              $crypt_autosmime.)  (S/MIME only)

       smime_keys
              Type: path
              Default: ""
              Since for S/MIME there is no pubring/secring as with  PGP,  mutt
              has  to  handle  storage  and retrieval of keys/certs by itself.
              This is very basic right now, and stores keys  and  certificates
              in  two  different  directories,  both  named  as the hash-value
              retrieved from OpenSSL. There is an index  file  which  contains
              mailbox-address  keyid  pair,  and which can be manually edited.
              This option points to the location of the private keys.  (S/MIME
              only)

       smime_pk7out_command
              Type: string
              Default: ""
              This  command is used to extract PKCS7 structures of S/MIME sig-
              natures, in order to extract the public X509 certificate(s).
              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_sign_command
              Type: string
              Default: ""
              This command is used to created S/MIME signatures of type multi-
              part/signed, which can be read by all mail clients.
              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_sign_opaque_command
              Type: string
              Default: ""
              This command is used to created S/MIME signatures of type appli-
              cation/x-pkcs7-signature, which can  only  be  handled  by  mail
              clients supporting the S/MIME extension.
              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_timeout
              Type: number
              Default: 300
              The number of seconds  after  which  a  cached  passphrase  will
              expire if not used.  (S/MIME only)

       smime_verify_command
              Type: string
              Default: ""
              This  command is used to verify S/MIME signatures of type multi-
              part/signed.
              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_verify_opaque_command
              Type: string
              Default: ""
              This  command is used to verify S/MIME signatures of type appli-
              cation/x-pkcs7-mime.
              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)

       smtp_authenticators
              Type: string
              Default: ""
              This  is  a  colon-delimited list of authentication methods mutt
              may attempt to use to log in to an SMTP  server,  in  the  order
              mutt should try them.  Authentication methods are any SASL mech-
              anism, e.g.  "digest-md5", "gssapi" or "cram-md5".  This  option
              is  case-insensitive.  If  it is "unset" (the default) mutt will
              try  all  available  methods,  in  order  from  most-secure   to
              least-secure.
              Example:

              set smtp_authenticators="digest-md5:cram-md5"


       smtp_pass
              Type: string
              Default: ""
              Specifies  the  password  for your SMTP account.  If unset, Mutt
              will prompt you for your password when you first send  mail  via
              SMTP.  See $smtp_url to configure mutt to send mail via SMTP.
              Warning:  you  should  only  use  this  option when you are on a
              fairly secure machine, because the superuser can read your  mut-
              trc even if you are the only one who can read the file.

       smtp_url
              Type: string
              Default: ""
              Defines  the  SMTP  smarthost where sent messages should relayed
              for delivery. This should take the form of an SMTP URL, e.g.:

              smtp[s]://[user[:pass]@]host[:port]

              where "[...]" denotes an optional part.  Setting  this  variable
              overrides the value of the $sendmail variable.

       sort
              Type: sort order
              Default: date
              Specifies  how to sort messages in the "index" menu.  Valid val-
              ues are:
              - date or date-sent
              - date-received
              - from
              - mailbox-order (unsorted)
              - score
              - size
              - spam
              - subject
              - threads
              - to
              You may optionally use the "reverse-" prefix to specify  reverse
              sorting order (example: "set sort=reverse-date-sent").

       sort_alias
              Type: sort order
              Default: alias
              Specifies  how  the entries in the "alias" menu are sorted.  The
              following are legal values:
              - address (sort alphabetically by email address)
              - alias (sort alphabetically by alias name)
              - unsorted (leave in order specified in .muttrc)

       sort_aux
              Type: sort order
              Default: date
              When sorting by threads, this variable controls how threads  are
              sorted in relation to other threads, and how the branches of the
              thread trees are sorted.  This can be  set  to  any  value  that
              $sort  can,  except  "threads" (in that case, mutt will just use
              "date-sent").  You can also specify the "last-" prefix in  addi-
              tion  to  the  "reverse-"  prefix,  but  "last-" must come after
              "reverse-".  The "last-" prefix causes  messages  to  be  sorted
              against its siblings by which has the last descendant, using the
              rest of $sort_aux as an ordering.  For instance,

              set sort_aux=last-date-received

              would mean that if a new message is received in a  thread,  that
              thread becomes the last one displayed (or the first, if you have
              "set sort=reverse-threads".)
              Note: For reversed  $sort  order  $sort_aux  is  reversed  again
              (which  is  not the right thing to do, but kept to not break any
              existing configuration setting).

       sort_browser
              Type: sort order
              Default: alpha
              Specifies how to sort entries in the file browser.  By  default,
              the entries are sorted alphabetically.  Valid values:
              - alpha (alphabetically)
              - date
              - size
              - unsorted
              You  may optionally use the "reverse-" prefix to specify reverse
              sorting order (example: "set sort_browser=reverse-date").

       sort_re
              Type: boolean
              Default: yes
              This variable is  only  useful  when  sorting  by  threads  with
              $strict_threads  unset.   In that case, it changes the heuristic
              mutt uses to thread messages by  subject.   With  $sort_re  set,
              mutt  will only attach a message as the child of another message
              by subject if the subject of the child  message  starts  with  a
              substring  matching the setting of $reply_regexp.  With $sort_re
              unset, mutt will attach the message whether or not this  is  the
              case,  as  long  as the non-$reply_regexp parts of both messages
              are identical.

       spam_separator
              Type: string
              Default: ","
              This variable controls what happens when multiple  spam  headers
              are matched: if unset, each successive header will overwrite any
              previous matches value for the spam label. If set, each  succes-
              sive  match  will  append to the previous, using this variable's
              value as a separator.

       spoolfile
              Type: path
              Default: ""
              If your spool mailbox is in a non-default place where Mutt  can-
              not  find  it,  you can specify its location with this variable.
              Mutt will initially set this variable to the value of the  envi-
              ronment variable $MAIL or $MAILDIR if either is defined.

       ssl_ca_certificates_file
              Type: path
              Default: "/etc/pki/tls/certs/ca-bundle.crt"
              This  variable  specifies  a file containing trusted CA certifi-
              cates.  Any server certificate that is signed with one of  these
              CA certificates is also automatically accepted.
              Example:

              set ssl_ca_certificates_file=/etc/ssl/certs/ca-certificates.crt


       ssl_client_cert
              Type: path
              Default: ""
              The file containing a client certificate and its associated pri-
              vate key.

       ssl_force_tls
              Type: boolean
              Default: no
              If this variable is set, Mutt will require that all  connections
              to  remote  servers be encrypted. Furthermore it will attempt to
              negotiate TLS even if the server does not advertise the capabil-
              ity,  since it would otherwise have to abort the connection any-
              way. This option supersedes $ssl_starttls.

       ssl_min_dh_prime_bits
              Type: number
              Default: 0
              This variable specifies the minimum acceptable  prime  size  (in
              bits)  for  use in any Diffie-Hellman key exchange. A value of 0
              will use the default from the GNUTLS library.

       ssl_starttls
              Type: quadoption
              Default: yes
              If set (the default), mutt  will  attempt  to  use  STARTTLS  on
              servers  advertising  the  capability. When unset, mutt will not
              attempt to use STARTTLS regardless of the server's capabilities.

       ssl_use_sslv3
              Type: boolean
              Default: yes
              This variable specifies whether to attempt to use SSLv3  in  the
              SSL authentication process.

       ssl_use_tlsv1
              Type: boolean
              Default: yes
              This  variable  specifies whether to attempt to use TLSv1 in the
              SSL authentication process.

       ssl_use_tlsv1_1
              Type: boolean
              Default: yes
              This variable specifies whether to attempt to use TLSv1.1 in the
              SSL authentication process.

       ssl_use_tlsv1_2
              Type: boolean
              Default: yes
              This variable specifies whether to attempt to use TLSv1.2 in the
              SSL authentication process.

       ssl_verify_dates
              Type: boolean
              Default: yes
              If set (the default),  mutt  will  not  automatically  accept  a
              server  certificate  that  is  either  not  yet valid or already
              expired. You should only unset this for particular known  hosts,
              using the <account-hook> function.

       ssl_verify_host
              Type: boolean
              Default: yes
              If  set  (the  default),  mutt  will  not automatically accept a
              server certificate whose host name does not match the host  used
              in  your  folder  URL. You should only unset this for particular
              known hosts, using the <account-hook> function.

       status_chars
              Type: string
              Default: "-*%A"
              Controls the characters used by  the  "%r"  indicator  in  $sta-
              tus_format.  The  first  character  is  used when the mailbox is
              unchanged. The second is used when the mailbox has been changed,
              and  it  needs  to  be  resynchronized. The third is used if the
              mailbox is in read-only mode, or if  the  mailbox  will  not  be
              written  when  exiting  that  mailbox (You can toggle whether to
              write changes to a mailbox with  the  <toggle-write>  operation,
              bound  by  default  to "%"). The fourth is used to indicate that
              the current folder has been opened in attach- message mode (Cer-
              tain operations like composing a new mail, replying, forwarding,
              etc. are not permitted in this mode).

       status_format
              Type: string
              Default: "-%r-Mutt: %f [Msgs:%?M?%M/?%m%?n? New:%n?%?o? Old:%o?%?d? Del:%d?%?F? Flag:%F?%?t? Tag:%t?%?p? Post:%p?%?b? Inc:%b?%?l? %l?]---(%s/%S)-%>-(%P)---"
              Controls the format of the status line displayed in the  "index"
              menu.   This string is similar to $index_format, but has its own
              set of printf(3)-like sequences:
              %b     number of mailboxes with new mail *
              %d     number of deleted messages *
              %f     the full pathname of the current mailbox
              %F     number of flagged messages *
              %h     local hostname
              %l     size (in bytes) of the current mailbox *
              %L     size (in bytes) of the messages shown (i.e., which  match
                     the current limit) *
              %m     the number of messages in the mailbox *
              %M     the  number of messages shown (i.e., which match the cur-
                     rent limit) *
              %n     number of new messages in the mailbox *
              %o     number of old unread messages *
              %p     number of postponed messages *
              %P     percentage of the way through the index
              %r     modified/read-only/won't-write/attach-message  indicator,
                     according to $status_chars
              %s     current sorting mode ($sort)
              %S     current aux sorting method ($sort_aux)
              %t     number of tagged messages *
              %u     number of unread messages *
              %v     Mutt version string
              %V     currently active limit pattern, if any *
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad
              For  an  explanation of "soft-fill", see the $index_format docu-
              mentation.
              * = can be optionally printed if nonzero
              Some of the above sequences can be used to  optionally  print  a
              string  if  their  value  is nonzero.  For example, you may only
              want to see the number of  flagged  messages  if  such  messages
              exist, since zero is not particularly meaningful.  To optionally
              print a string based upon one of the above sequences,  the  fol-
              lowing construct is used:
              %?<sequence_char>?<optional_string>?
              where  sequence_char  is  a  character from the table above, and
              optional_string  is  the  string  you  would  like  printed   if
              sequence_char  is  nonzero.   optional_string  may contain other
              sequences as well as normal text, but you may not nest  optional
              strings.
              Here is an example illustrating how to optionally print the num-
              ber of new messages in a mailbox:
              %?n?%n new messages.?
              You can also switch between two strings using the following con-
              struct:
              %?<sequence_char>?<if_string>&<else_string>?
              If  the  value  of  sequence_char is non-zero, if_string will be
              expanded, otherwise else_string will be expanded.
              You can force the result of any printf(3)-like  sequence  to  be
              lowercase by prefixing the sequence character with an underscore
              ("_") sign.  For example, if you want to display the local host-
              name in lowercase, you would use: "%_h".
              If  you prefix the sequence character with a colon (":") charac-
              ter, mutt will replace any dots in the expansion by underscores.
              This  might be helpful with IMAP folders that don't like dots in
              folder names.

       status_on_top
              Type: boolean
              Default: no
              Setting this variable causes the "status bar" to be displayed on
              the  first  line  of  the screen rather than near the bottom. If
              $help is set, too it'll be placed at the bottom.

       strict_threads
              Type: boolean
              Default: no
              If set, threading will only make use of  the  "In-Reply-To"  and
              "References:"  fields  when  you  $sort  by message threads.  By
              default, messages with the same subject are grouped together  in
              "pseudo  threads.". This may not always be desirable, such as in
              a personal mailbox where you might have several  unrelated  mes-
              sages  with  the  subjects  like  "hi"  which  will  get grouped
              together. See also $sort_re for a less drastic way  of  control-
              ling this behavior.

       suspend
              Type: boolean
              Default: yes
              When unset, mutt won't stop when the user presses the terminal's
              susp key, usually "^Z". This is useful if you run mutt inside an
              xterm using a command like "xterm -e mutt".

       text_flowed
              Type: boolean
              Default: no
              When  set, mutt will generate "format=flowed" bodies with a con-
              tent type of "text/plain; format=flowed".  This format is easier
              to  handle  for  some mailing software, and generally just looks
              like ordinary text.  To actually make use of this format's  fea-
              tures, you'll need support in your editor.
              Note that $indent_string is ignored when this option is set.

       thorough_search
              Type: boolean
              Default: yes
              Affects  the  ~b  and  ~h search operations described in section
              "patterns".  If set, the headers and  body/attachments  of  mes-
              sages  to  be  searched  are decoded before searching. If unset,
              messages are searched as they appear in the folder.
              Users searching attachments or for non-ASCII  characters  should
              set  this  value  because  decoding  also  includes  MIME  pars-
              ing/decoding and possible character set  conversions.  Otherwise
              mutt will attempt to match against the raw message received (for
              example quoted-printable encoded or with encoded headers)  which
              may lead to incorrect search results.

       thread_received
              Type: boolean
              Default: no
              When  set, mutt uses the date received rather than the date sent
              to thread messages by subject.

       tilde
              Type: boolean
              Default: no
              When set, the internal-pager will pad blank lines to the  bottom
              of the screen with a tilde ("~").

       time_inc
              Type: number
              Default: 0
              Along  with  $read_inc,  $write_inc, and $net_inc, this variable
              controls the frequency with  which  progress  updates  are  dis-
              played.  It  suppresses updates less than $time_inc milliseconds
              apart. This can improve throughput on systems with  slow  termi-
              nals, or when running mutt on a remote system.
              Also see the "tuning" section of the manual for performance con-
              siderations.

       timeout
              Type: number
              Default: 600
              When Mutt is waiting for user input either idling in menus or in
              an  interactive prompt, Mutt would block until input is present.
              Depending on the context, this would prevent certain  operations
              from working, like checking for new mail or keeping an IMAP con-
              nection alive.
              This variable controls how many seconds Mutt will at  most  wait
              until it aborts waiting for input, performs these operations and
              continues to wait for input.
              A value of zero or less will cause Mutt to never time out.

       tmpdir
              Type: path
              Default: ""
              This variable allows you to specify where Mutt  will  place  its
              temporary  files  needed  for displaying and composing messages.
              If this variable is not set, the environment variable $TMPDIR is
              used.  If $TMPDIR is not set then "/var/tmp" is used.

       to_chars
              Type: string
              Default: " +TCFL"
              Controls  the  character used to indicate mail addressed to you.
              The first character is  the  one  used  when  the  mail  is  not
              addressed  to your address.  The second is used when you are the
              only recipient of the message.  The third is when  your  address
              appears  in  the  "To:"  header  field, but you are not the only
              recipient of the message.  The fourth  character  is  used  when
              your address is specified in the "Cc:" header field, but you are
              not the only recipient.  The fifth character is used to indicate
              mail that was sent by you.  The sixth character is used to indi-
              cate when a mail was sent to a mailing-list you subscribe to.

       tunnel
              Type: string
              Default: ""
              Setting this variable will cause mutt to open a pipe to  a  com-
              mand instead of a raw socket. You may be able to use this to set
              up preauthenticated connections to your  IMAP/POP3/SMTP  server.
              Example:

              set tunnel="ssh -q mailhost.net /usr/local/libexec/imapd"

              Note: For this example to work you must be able to log in to the
              remote machine without having to enter a password.
              When set, Mutt uses  the  tunnel  for  all  remote  connections.
              Please see "account-hook" in the manual for how to use different
              tunnel commands per connection.

       uncollapse_jump
              Type: boolean
              Default: no
              When set, Mutt will jump to the next  unread  message,  if  any,
              when the current thread is uncollapsed.

       use_8bitmime
              Type: boolean
              Default: no
              Warning: do not set this variable unless you are using a version
              of sendmail which supports the -B8BITMIME flag (such as sendmail
              8.8.x) or you may not be able to send mail.
              When  set,  Mutt  will invoke $sendmail with the -B8BITMIME flag
              when sending 8-bit messages to enable ESMTP negotiation.

       use_domain
              Type: boolean
              Default: yes
              When set, Mutt will qualify all local  addresses  (ones  without
              the  "@host" portion) with the value of $hostname.  If unset, no
              addresses will be qualified.

       use_envelope_from
              Type: boolean
              Default: no
              When set, mutt will set the envelope sender of the message.   If
              $envelope_from_address  is  set,  it  will be used as the sender
              address. If unset, mutt will attempt to derive the  sender  from
              the "From:" header.
              Note  that  this information is passed to sendmail command using
              the -f command line switch. Therefore setting this option is not
              useful  if  the $sendmail variable already contains -f or if the
              executable pointed  to  by  $sendmail  doesn't  support  the  -f
              switch.

       use_from
              Type: boolean
              Default: yes
              When set, Mutt will generate the "From:" header field when send-
              ing messages.  If unset, no "From:" header field will be  gener-
              ated unless the user explicitly sets one using the "my_hdr" com-
              mand.

       use_idn
              Type: boolean
              Default: yes
              When set, Mutt will show you international domain names decoded.
              Note:  You  can  use  IDNs  for addresses even if this is unset.
              This variable only affects decoding.

       use_ipv6
              Type: boolean
              Default: yes
              When set, Mutt will look for IPv6 addresses of hosts it tries to
              contact.   If this option is unset, Mutt will restrict itself to
              IPv4 addresses.  Normally, the default should work.

       user_agent
              Type: boolean
              Default: yes
              When set, mutt will add a "User-Agent:" header to outgoing  mes-
              sages,  indicating  which version of mutt was used for composing
              them.

       visual
              Type: path
              Default: ""
              Specifies the visual editor to invoke when the "~v"  command  is
              given in the built-in editor.

       wait_key
              Type: boolean
              Default: yes
              Controls  whether  Mutt  will  ask  you  to press a key after an
              external  command  has  been   invoked   by   these   functions:
              <shell-escape>,  <pipe-message>,  <pipe-entry>, <print-message>,
              and <print-entry> commands.
              It is also used when viewing attachments with "auto_view",  pro-
              vided  that  the corresponding mailcap entry has a needsterminal
              flag, and the external program is interactive.
              When set, Mutt will always ask for a key. When unset, Mutt  will
              wait  for a key only if the external command returned a non-zero
              status.

       weed
              Type: boolean
              Default: yes
              When set, mutt will weed headers  when  displaying,  forwarding,
              printing, or replying to messages.

       wrap
              Type: number
              Default: 0
              When set to a positive value, mutt will wrap text at $wrap char-
              acters.  When set to a negative value, mutt will  wrap  text  so
              that there are $wrap characters of empty space on the right side
              of the terminal. Setting it to zero makes mutt wrap at the  ter-
              minal width.

       wrap_headers
              Type: number
              Default: 78
              This  option specifies the number of characters to use for wrap-
              ping an outgoing message's headers. Allowed values  are  between
              78 and 998 inclusive.
              Note:  This  option usually shouldn't be changed. RFC5233 recom-
              mends a line length of 78 (the default), so please  only  change
              this setting when you know what you're doing.

       wrap_search
              Type: boolean
              Default: yes
              Controls whether searches wrap around the end.
              When  set,  searches  will wrap around the first (or last) item.
              When unset, incremental searches will not wrap.

       wrapmargin
              Type: number
              Default: 0
              (DEPRECATED) Equivalent to setting $wrap with a negative value.

       write_bcc
              Type: boolean
              Default: yes
              Controls whether mutt writes out the "Bcc:" header when  prepar-
              ing  messages to be sent.  Exim users may wish to unset this. If
              mutt is set to deliver directly via SMTP (see  $smtp_url),  this
              option does nothing: mutt will never write out the "Bcc:" header
              in this case.

       write_inc
              Type: number
              Default: 10
              When  writing  a  mailbox,  a  message  will  be  printed  every
              $write_inc  messages  to indicate progress.  If set to 0, only a
              single message will be displayed before writing a mailbox.
              Also see the $read_inc, $net_inc and $time_inc variables and the
              "tuning" section of the manual for performance considerations.

SEE ALSO
       iconv(1),   iconv(3),   mailcap(5),   maildir(5),   mbox(5),   mutt(1),
       printf(3), regex(7), strftime(3)
       The Mutt Manual
       The Mutt home page: http://www.mutt.org/
AUTHOR
       Michael Elkins, and others.  Use  <mutt-dev AT mutt.org>  to  contact  the
       developers.

Unix                            September 2002                       muttrc(5)