NAME

       Mail::MIMEDefang::DKIM - DKIM interface for MIMEDefang

DESCRIPTION

       Mail::MIMEDefang::DKIM is a module with a set of DKIM related methods called from
       mimedefang-filter to operate with DKIM.

METHODS

       md_dkim_sign
           Returns a mail header and the DKIM signature for the message.  The method accepts the
           following parameters:

           $keyfile
               The path to the private DKIM key

           $algorithm
               The algorithm to be used to sign the message, by default is 'rsa-sha1'

           $method
               The method used to sign the message, by default is 'relaxed'

           $domain
               The domain to be used when signing the message, by default it's autodetected

           $selector
               The selector to be used when signing the message, by default it's 'default'

           $headers
               The headers to sign, by default the headers are:
                              From Sender Reply-To Subject Date
                              Message-ID To Cc MIME-Version
                              Content-Type Content-Transfer-Encoding Content-ID Content-
               Description
                              Resent-Date Resent-From Resent-Sender Resent-To Resent-cc
                              Resent-Message-ID
                              In-Reply-To References
                              List-Id List-Help List-Unsubscribe List-Subscribe
                              List-Post List-Owner List-Archive

       md_dkim_verify
           Verifies the DKIM signature of an email.  Return value can be "pass", "fail",
           "invalid", "temperror", "none".  In case of multiple signatures, the "best" result
           will be returned.  Best is defined as "pass", followed by "fail", "invalid", and
           "none".  The second return value is the domain that has applied the signature.  The
           third return value is the size of the DKIM public key.  The forth return value is the
           value of the "b" tag of the DKIM signature.