2009/3/5 ghe <g...@slsware.com>: > I need to change email sent by a user from one domain (a.com) so that > clicking Reply will reply to him at b.com. (a.com isn't always reliable, > and I admin b.com, among other reasons.) > > Google got me to postfix.org's documentation on generic maps. I'm > running 2.5, so tried that, to rewrite the destination address on its > way out, but couldn't get it to work:
This is a little unclear. I interpret that to mean mail sent from your server, from u...@a.com, should appear to come from u...@b.com, so that the return-path will be at b.com - is this correct? You then said you want "to rewrite the destination address on its way out", but that'd be inconsistent. > main.cf: > smtp_generic_maps = hash:/etc/postfix/generic > > /etc/postfix/generic: > ghe2...@gmail.com g...@slsware.com > g...@qw.net ...@slsware.com generic_maps are for rewriting local addresses on outgoing mail, as documented: http://www.postfix.org/ADDRESS_REWRITING_README.html#generic > I sent mail to myself at gmail, expecting it to come here That sounds like you want to rewrite the recipient address, which is non-local.I believe canonical_maps will do this for you, but I don't know what the scope is (ie. I expect it to affect mail which isn't local-to-local, but I honestly don't know). Someone else can shed more light on this. > So I tried to rewrite the sender address on its way in. The > canonical-sender map worked when I telnet'ed and did SMTP by hand, > without supplying a From: header. But when he sent me mail, the > Return-Path header was rewritten but From: was not, so clicking Reply > was sending to a.com. > > Is there a way to get postfix to change From: or to maybe copy > Return-Path to a Reply-To? The canonical and generic maps will affect the envelope address/es and From/To headers, unless I'm mistaken. The documentation doesn't suggest to me that it will parse and modify any other headers.
