Mail::MIMEDefang::DKIM(3)

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/simple'

    $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

    $wrap
        Option to enable or disable DKIM header lines wrap (enabled by default).

md_dkim_verify
    Verifies the DKIM signature of an email, this method has no parameters.

    The first return value can be "pass", "fail", "invalid", "temperror" or "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.