It's only happening with this customer. Other customers from Russia, USA, etc, create tickets correctly and receive emails correctly. I think the first thing to do is posting the problematic email headers: Return-Path: <litianyu@sanitec.net.cn>
X-Original-To: support@brainstorm.es
Delivered-To: support@brainstorm.es
Received: from regular1.263xmail.com (regular1.263xmail.com )
(using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
(No client certificate requested)
by smtp.brainstorm.es (Postfix) with ESMTP id 279D7399634;
Tue, 11 Mar 2014 03 +0100 (CET)
Received: from litianyu?sanitec.net.cn (unknown )
by regular1.263xmail.com (Postfix) with SMTP id AD58513C3D;
Tue, 11 Mar 2014 10 +0800 (CST)
X-263anti-spam;
X-MAIL-GRAY
X-MAIL-DELIVERY
X-ABS-CHECKED
X-KSVirus-check
Received: from bj-e2-wmthree5 (localhost.localdomain )
by smtpcom.263xmail.com (Postfix) with ESMTP id BE46A1FE2C;
Tue, 11 Mar 2014 10 +0800 (CST)
X-RL-SENDER@sanitec.net.cn
X-FST-TO@brainstorm.es
X-SENDER-IP.150.64.103
X-LOGIN-NAME@net263.com
X-UNIQUE-TAG:<2f549d68679cecda44b9d573112b733c>
X-ATTACHMENT-NUM
X-SENDER@sanitec.net.cn
X-DNS-TYPE
Received: from bj-e2-wmthree5 (unknown )
by smtpcom.263xmail.com (Postfix) whith ESMTP id 19420J9JZU7;
Tue, 11 Mar 2014 10 +0800 (CST)
Date: Tue, 11 Mar 2014 10 +0800 (CST)
From: =?UTF-8?B?5p2O5aSp5a6H?= <litianyu@sanitec.net.cn>
To: =?UTF-8?B?c3VwcG9ydA==?= <support@brainstorm.es>
Cc: =?UTF-8?B?Qm9yamEgQ2hpcml2ZWxsYQ==?= <bchirivella@brainstorm.es>,
=?UTF-8?B?ZGFsZXhhbmRlcg==?= <dalexander@brainstorm.es>,
=?UTF-8?B?5YiY6I+y?= <liu.fei@sanitec.net.cn>,
=?UTF-8?B?5p2O5paH5Y2/?= <liwenqing@sanitec.net.cn>,
=?UTF-8?B?5a6L5ram5p2w?= <songrunjie@sanitec.net.cn>
Message-ID: <1205013352.724646.1394503787070.JavaMail.root@bj-e2-wmthree5>
Subject: =?UTF-8?B?YnVnIGZvciBhbmltYXRpb24=?=
MIME-Version: 1.0
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: base64
X-Priority: 3Please let me know what else should I do :)
