On Wed, Aug 14, 2013 at 08:18:55AM -0400, David F. Skoll wrote: > On Wed, 14 Aug 2013 14:10:55 +0200 > Axb <axb.li...@gmail.com> wrote: > > > isn't Return-Path added my MDA? seems to me this rule will only work > > on systems which run SA after delivery, and not in "gateway mode". > > Not necessarily. We use it in gateway mode with MIMEDefang, which > synthesizes a Return-Path: header as well as the first Received: header > before passing the message to SpamAssassin. > > If other gateway-mode milters or any other gateway-mode mechanisms don't > do this, then yes... the rule won't work.
Correct way is to use EnvelopeFrom pseudo-header as per documentation.. http://spamassassin.apache.org/full/3.3.x/doc/Mail_SpamAssassin_Conf.html#envelope_sender_header_name_of_header
