Hi, I red the postfix docs, but doesn't get a grip on my problem: In an installation of SuSE 7.2/postfix-20010228pl02-8 I suffer from following problem: Although I've activated masquerading, one can easily find the sending host in the Received: header incl. ip address. Is there any way to get rid of it: xyz = external domain int = internal domain Received: from xyz.de (sendinghost.int.de [192.168.15.14]) by mail.int.de (Postfix on LISA Linux (i386)) with ESMTP id C39416105 for <somebody@anywhere.com>; Thu, 4 Jul 2002 15:37:31 +0200 (CEST) Also I would like to get of the Sender: header, generated by Netscape Mail: Sender: sb@int.de The reason is very simple: hiding any internal details. Any hints highly appreciated. TIA, Hans-Peter