Grant Taylor writes: > About the only thing that I can think of where the From: and the > Return-Path: might not match is a forward or some other thing like > that. However I can't see why any one would have addresses > forwarding in to a mailing list. > > Do you have such an example handy?
Sure. Anybody who uses a single host to send mail but alters their >From according to the venue (me, for example). Anybody whose MTA identifies the envelope sender as u...@actual-host.example.com, but whose MUA identifies them as u...@example.com in From. Anybody whose mail is handled on somebody else's account, and thus will have a Sender header (typically Return-Path will more likely point to Sender than From in that case). It would be easy to implement in something like SpamAssassin. ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org Security Policy: http://wiki.list.org/x/QIA9
