Mail::SpamAssassin::Plugin::DKIM(3)

NAME
Mail::SpamAssassin::Plugin::DKIM - perform DKIM verification tests

SYNOPSIS
 loadplugin Mail::SpamAssassin::Plugin::DKIM [/path/to/DKIM.pm]

 full DOMAINKEY_DOMAIN eval:check_dkim_verified()

DESCRIPTION
This SpamAssassin plugin implements DKIM lookups, as described by the current draft specs:

  http://mipassoc.org/dkim/specs/draft-allman-dkim-base-01.txt
  http://mipassoc.org/mass/specs/draft-allman-dkim-base-00-10dc.html

It requires the "Mail::DKIM" CPAN module to operate. Many thanks to Jason Long for that module.

SEE ALSO
"Mail::DKIM", "Mail::SpamAssassin::Plugin"

  http://jason.long.name/dkimproxy/

USER SETTINGS

dkim_timeout n             (default: 5)
    How many seconds to wait for a DKIM query to complete, before scanning continues without the DKIM result.

whitelist_from_dkim add@ress.com [identity]
    Use this to supplement the whitelist_from addresses with a check to make sure the message has been signed by a Domain Keys Identified Mail (DKIM) signature that can be verified against the From: domain's DKIM public key.

    In order to support optional identities, only one whitelist entry is allowed per line, exactly like "whitelist_from_rcvd". Multiple "whitelist_from_dkim" lines are allowed. File-glob style meta characters are allowed for the From: address, just like with "whitelist_from_rcvd". The optional identity parameter must match from the right-most side, also like in "whitelist_from_rcvd".

    If no identity parameter is specified the domain of the address parameter specified will be used instead.

    The From: address is obtained from a signed part of the message (ie. the "From:" header), not from envelope data that is possible to forge.

    Since this whitelist requires an DKIM check to be made, network tests must be enabled.

    Examples:

      whitelist_from_dkim joe@example.com
      whitelist_from_dkim *@corp.example.com

      whitelist_from_dkim jane@example.net  example.org
      whitelist_from_dkim dick@example.net  richard@example.net

def_whitelist_from_dkim add@ress.com [identity]
    Same as "whitelist_from_dkim", but used for the default whitelist entries in the SpamAssassin distribution. The whitelist score is lower, because these are often targets for spammer spoofing.