[Systems] sunjammer: postfix & dovecot upgraded

[Bernie Innocenti]

I've upgraded Postfix and Dovecot to the latest versions from lucid.

Postfix now listens to the smtps and submission ports for authenticated
relay. SASL authentication happens through Dovecot's auth daemon, which
in turn uses LDAP as its user database.

For dogfooding, I've started using sunjammer as my default smtp relay.

-- 
   // Bernie Innocenti - http://codewiz.org/
 \X/  Sugar Labs       - http://sugarlabs.org/