In an older episode, on 2014-02-22 20:47, Peter Marius wrote:
Return-Path: <#123456...@gmx.net>
From: GMX Magazin <maili...@gmxnet.de>
My understanding was that sender_access will filter the address in "From:", but obviously it does not?
See http://www.postfix.org/postconf.5.html#check_sender_access
Is GMX doing something wrong here? Seems like they are using another "From:" in the negotiation phase than in the later data transfer?
MAIL FROM (in the above Postfix documentation) is what you call "negotiation phase". From: is something else.
See https://en.wikipedia.org/wiki/Return-Path Regards, wolfgang
