this is the header information that was sent (and forwarded back to me) to a hotmail account. The email server I used, was the postfix-mysql for debian 4.0. Code: Return-Path: <firstname.lastname@example.org> X-Original-To: email@example.com Delivered-To: firstname.lastname@example.org Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.mydomain.ca (Postfix) with ESMTP id 04B99DA4235 for <email@example.com>; Sat, 24 Nov 2007 22:36:28 -0500 (EST) X-Virus-Scanned: Debian amavisd-new at mail.mydomain.ca Received: from mail.mydomain.ca ([127.0.0.1]) by localhost (etch.mydomain.ca [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 98KrUDoKJakB for <firstname.lastname@example.org>; Sat, 24 Nov 2007 22:36:24 -0500 (EST) Received: from bay0-omc1-s24.bay0.hotmail.com (bay0-omc1-s24.bay0.hotmail.com [188.8.131.52]) by mail.mydomain.ca (Postfix) with ESMTP id 38893DA4234 for <email@example.com>; Sat, 24 Nov 2007 22:36:24 -0500 (EST) Received: from BAY127-W39 ([184.108.40.206]) by bay0-omc1-s24.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Sat, 24 Nov 2007 19:36:23 -0800 Message-ID: <BAY127-W392E8D33B274B7BCBA20B19C740@phx.gbl> Content-Type: multipart/alternative; boundary="_55b781d2-fea9-4c20-acde-89dc9a45f68a_" X-Originating-IP: [(my home ip address)] From: USER <firstname.lastname@example.org> To: <email@example.com> Subject: FW: I love you Date: Sat, 24 Nov 2007 22:36:23 -0500 Importance: Normal In-Reply-To: <002701c82f13$f88b6c30$e9a24490$@ca> References: <002701c82f13$f88b6c30$e9a24490$@ca> MIME-Version: 1.0 X-OriginalArrivalTime: 25 Nov 2007 03:36:23.0483 (UTC) FILETIME=[59F048B0:01C82F14] Why doesn't it come up with my mail server name, or my mail server IP instead of localhost and 127.0.0.1? is this a flaw in the setup? or is this how it is intended to be?