Peter Marius: > So it is just a coincidence that the MAIL FROM and From: match for web.de?
Look at your own posting to this mailing list: Return-Path: <owner-postfix-us...@postfix.org> ... Message-ID: <trinity-dd75f1af-6fd3-4ec9-bb6d-a26f7401e631-1393112292077@3capp-we bde-bs05> From: "Peter Marius" <pe...@web.de> To: postfix-users@postfix.org Subject: Aw: Re: Problem with filtering GMX emails in sender_access ... The From: header has your address, but the MAIL FROM address is owner-postfix-us...@postfix.org, i.e. the mailing list adminstrator. This is good, because you don't want to get all the underliverable mail notifications from people with full mailboxes and so on. Wietse