我有一个问题，我的网站上的一些用户抱怨他们收到空的电子邮件。 通过比较他们的电子邮件的内容和电子邮件标题，我得到的结论是，他们的邮件服务器以某种方式改变内容。 垃圾邮件filter或病毒filter可能？ 尽pipe如此，我不能确定它们中的任何一个是通过邮件头存在的。
我已经在GMail和Exchange 2010上testing了大致相同的头部结果。
Delivered-To: [email protected] Received: by 10.60.80.68 with SMTP id p4csp162755oex; Wed, 16 Jan 2013 05:01:10 -0800 (PST) X-Received: by 10.112.25.70 with SMTP id a6mr591545lbg.117.1358341269727; Wed, 16 Jan 2013 05:01:09 -0800 (PST) Return-Path: <[email protected]> Received: from sending.mail.server.com (sending.mail.server.com [212.212.212.212]) by mx.google.com with ESMTP id n2si11385089lbk.106.2013.01.16.05.01.08; Wed, 16 Jan 2013 05:01:09 -0800 (PST) Received-SPF: neutral (google.com: 193.15.255.103 is neither permitted nor denied by best guess record for domain of [email protected]) client-ip=193.15.255.103; Authentication-Results: mx.google.com; spf=neutral (google.com: 193.15.255.103 is neither permitted nor denied by best guess record for domain of [email protected]) smtp[email protected] X-AuditID: 0a0201f8-b7f646d000000e46-26-50f6a494a5ce Received: from webserver (Unknown_Domain [192.168.7.111]) by sending.mail.server.com (Corporate mail) with SMTP id A2.B0.03654.494A6F05; Wed, 16 Jan 2013 14:01:08 +0100 (CET) Message-ID: <[email protected]> MIME-Version: 1.0 From: "Web Service" <[email protected]> To: [email protected] Date: 16 Jan 2013 14:01:07 +0100 Subject: The Subject Content-Type: multipart/alternative; boundary=--boundary_35_281f82f0-3971-4c42-a8e1-f56216afbefa ----boundary_35_281f82f0-3971-4c42-a8e1-f56216afbefa Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable 用户似乎使用Exchange 2003作为服务器，并且他们收到的消息使用了与我的服务器似乎正在生成不同的边界。 因此，我认为电子邮件已经被重新放在用户的某个地方，并在那个时候丢失了一些内容。
x-mimeole: Produced By Microsoft Exchange V6.5 Received: from their.last.mail.server.net ([10.150.128.35]) by computer.corporate.net with Microsoft SMTPSVC(6.0.3790.4675); Tue, 15 Jan 2013 13:22:30 +0200 Content-Type: multipart/alternative; boundary="----_=_NextPart_003_01CDF312.9B0E9F00" Received: from another.of.their.mail.servers.net ([10.150.129.56]) by their.last.mail.server.net with Microsoft SMTPSVC(6.0.3790.4675); Tue, 15 Jan 2013 12:22:30 +0100 Received: from mail.server.net (mumrelp001.nsn-inter.net [93.183.13.135]) by another.of.their.mail.servers.net (8.12.11.20060308/8.12.11) with ESMTP id r0FBMSDH026761 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for <[email protected]>; Tue, 15 Jan 2013 12:22:28 +0100 Received: from sending.mail.server.com (sending.mail.server.com [212.212.212.212]) by mail.server.net (8.13.8/8.13.8) with ESMTP id r0FBMRBq001875 for <[email protected]>; Tue, 15 Jan 2013 12:22:27 +0100 Received: from webserver (Unknown_Domain [192.168.7.111]) by sending.mail.server.com (Corporate mail) with SMTP id 30.F9.03654.3FB35F05; Tue, 15 Jan 2013 12:22:27 +0100 (CET) Content-Class: urn:content-classes:message Subject: The Subject Date: Tue, 15 Jan 2013 13:22:26 +0200 Message-ID: <[email protected]> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: The Subject Thread-Index: Ac3zEpv+A9o/QUbWTMmfmvqg/aBDEg== From: Web Service <[email protected]> To: "Name of user" <[email protected]> MIME-Version: 1.0 ------_=_NextPart_003_01CDF312.9B0E9F00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
电子邮件在传输过程中被重build是常见的事情，这最常见的原因是什么？ 你如何防止这种情况发生？
电子邮件确实在遍历系统时被修改，但唯一应该改变的是标题，它们添加了关于它们所经过的系统的信息。 身体不应该被修改。