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.