libmail-dkim-perl 0.25-1 (i386 binary) in ubuntu gutsy

 DomainKeys Identified Mail (DKIM) provides a method for validating an identity
 that is associated with a message, during the time it is transferred over the
 Internet. That identity then can be held accountable for the message.
 .
 This is a Perl implementation created by Jason Long of Messiah
 College. It performs signing as well as signature verification. It
 also supports the older DomainKeys standard.
 .
  Homepage: http://jason.long.name/dkimproxy/