Mail::SpamAssassin::PlUser:Contributed PeMail::SpamAssassin::Plugin::HashBL(3)
NAME
HashBL - query hashed (and unhashed) DNS blocklists
SYNOPSIS
loadplugin Mail::SpamAssassin::Plugin::HashBL
# NON-WORKING usage examples below, replace xxx.example.invalid with real list
# See documentation below for detailed usage
header HASHBL_EMAIL eval:check_hashbl_emails('ebl.example.invalid')
describe HASHBL_EMAIL Message contains email address found on EBL
priority HASHBL_EMAIL -100 # required priority to launch async lookups early
tflags HASHBL_EMAIL net
hashbl_acl_freemail gmail.com
header HASHBL_OSENDR eval:check_hashbl_emails('rbl.example.invalid/A', 'md5/max=10/shuffle', 'X-Original-Sender', '^127\.', 'freemail')
describe HASHBL_OSENDR Message contains email address found on HASHBL
priority HASHBL_OSENDR -100 # required priority to launch async lookups early
tflags HASHBL_OSENDR net
body HASHBL_BTC eval:check_hashbl_bodyre('btcbl.example.invalid', 'sha1/max=10/shuffle', '\b([13][a-km-zA-HJ-NP-Z1-9]{25,34})\b')
describe HASHBL_BTC Message contains BTC address found on BTCBL
priority HASHBL_BTC -100 # required priority to launch async lookups early
tflags HASHBL_BTC net
header HASHBL_URI eval:check_hashbl_uris('rbl.example.invalid', 'sha1', '127.0.0.32')
describe HASHBL_URI Message contains uri found on rbl
priority HASHBL_URI -100 # required priority to launch async lookups early
tflags HASHBL_URI net
DESCRIPTION
This plugin support multiple types of hashed or unhashed DNS
blocklists.
OPTS refers to multiple generic options:
raw do not hash data, query as is
md5 hash query with MD5
sha1 hash query with SHA1
case keep case before hashing, default is to lowercase
max=x maximum number of queries
shuffle if max exceeded, random shuffle queries before truncating to limit
Multiple options can be separated with slash or other non-word
character. If OPTS is empty ('') or missing, default is used.
HEADERS refers to slash separated list of Headers to process:
ALL all headers
ALLFROM all From headers as returned by $pms->all_from_addrs()
EnvelopeFrom message envelope from (Return-Path etc)
HeaderName any header as used with $pms->get()
if HEADERS is empty ('') or missing, default is used.
header RULE check_hashbl_emails('bl.example.invalid/A', 'OPTS',
'HEADERS/body', '^127\.')
Check email addresses from DNS list, "body" can be specified along
with headers to search body for emails. Optional subtest regexp to
match DNS answer. Note that eval rule type must always be
"header".
DNS query type can be appended to list with /A (default) or /TXT.
Additional supported OPTS:
nodot strip username dots from email
notag strip username tags from email
nouri ignore emails inside uris
noquote ignore emails inside < > or possible quotings
Default OPTS: sha1/notag/noquote/max=10/shuffle
Default HEADERS: ALLFROM/Reply-To/body
For existing public email blacklist, see: http://msbl.org/ebl.html
# Working example, see http://msbl.org/ebl.html before usage
header HASHBL_EMAIL eval:check_hashbl_emails('ebl.msbl.org')
describe HASHBL_EMAIL Message contains email address found on EBL
priority HASHBL_EMAIL -100 # required priority to launch async lookups early
tflags HASHBL_EMAIL net
header RULE check_hashbl_uris('bl.example.invalid/A', 'OPTS',
'^127\.')
Check uris from DNS list, optional subtest regexp to match DNS
answer.
DNS query type can be appended to list with /A (default) or
/TXT.
Default OPTS: sha1/max=10/shuffle
body RULE check_hashbl_bodyre('bl.example.invalid/A', 'OPTS',
'\b(match)\b', '^127\.')
Search body for matching regexp and query the string captured.
Regexp must have a single capture ( ) for the string ($1).
Optional subtest regexp to match DNS answer. Note that eval rule
type must be "body" or "rawbody".
perl v5.26.3 2021-04Mail::SpamAssassin::Plugin::HashBL(3)