What was the content of the attached "details.txt".
Here is the header of the mail, I successfully receive, when the mail has been sent to my private mailserver:
Return-Path: <web1@foo.vlinux.de>
X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on foo.vlinux.de
X-Spam-Level:
X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00 autolearn=ham
version=3.2.5
Delivered-To: foo@privateserver.de
Received: from berlinXXX.server4you.de (berlinXXX.server4you.de [217.172.181.18])
by foo.vlinux.de (Postfix) with ESMTP id 41D6152FCD
for <foo@privateserver.de>; Thu, 19 Nov 2009 17:09:12 +0100 (CET)
Received: by berlinXXX.server4you.de (Postfix, from userid 648)
id 99973EAC5A; Thu, 19 Nov 2009 17:09:08 +0100 (CET)
To:
Subject: [marekdd] Seite geaendert: wiki:foo
From: wikiadmin@wikiserver.de
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Message-Id: <20091119160908.99973EAC5A@berlinXXX.server4you.de>
Date: Thu, 19 Nov 2009 17:09:08 +0100 (CET)
Maybe this could help?