Goet, Kees wrote: > > > > The mail-headers contain: > > From: [EMAIL PROTECTED] > > Sender: [EMAIL PROTECTED] > > Return-Path: [EMAIL PROTECTED] > > > > But, in the Postfix logfile I see: > > [EMAIL PROTECTED] > > > > This gives problems with SPF: mail from "@mycomp.nl" which does not > come from an email-server of "mycomp.nl", so it will be blocked. > > > > Doing something analogous from gmail, works allright: in that case the > from-address in the Postfix-logfile is the gmail-address, not the > mycompany-address (also the > > Return-Path header has the gmail-address). > > > > So, what determines the from-address Postfix will use? > > Postfix uses envelope addresses. It does not care about headers for delivery purposes. A header From and, optionally, Sender is added by the mail client doing the original sending. Looks pretty doesn't it ;) . Return-Path is set by the originating MTA for a bounce path.
How did you get this list email if I did not send this directly to you then? Brian