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Mail::SpamAssassin::ReUserrContributeMail::SpamAssassin::RegistryBoundaries(3)
NAME
       Mail::SpamAssassin::RegistryBoundaries - domain delegation rules
METHODS
       ($hostname, $domain) = split_domain ($fqdn)
           Cut a fully-qualified hostname into the hostname part and the
           domain part, splitting at the DNS registry boundary.
           Examples:
               "www.foo.com" => ( "www", "foo.com" )
               "www.foo.co.uk" => ( "www", "foo.co.uk" )
       $domain = trim_domain($fqdn)
           Cut a fully-qualified hostname into the hostname part and the
           domain part, returning just the domain.
           Examples:
               "www.foo.com" => "foo.com"
               "www.foo.co.uk" => "foo.co.uk"
       $ok = is_domain_valid($dom)
           Return 1 if the domain is valid, "undef" otherwise.  A valid domain
           (a) does not contain whitespace, (b) contains at least one dot, and
           (c) uses a valid TLD or ccTLD.
perl v5.26.3                      202Mail::SpamAssassin::RegistryBoundaries(3)