Gmail发送由postfix发送到垃圾邮件的批量邮件 – spf，rDNS设置（头里面）

这里是被阻止的消息的标题（实际的域名被replace为domain.com，具有nnnn的IP地址和具有person.account的gmail账户名称）：

Delivered-To: [email protected] Received: by 10.216.89.137 with SMTP id c9cs247685wef; Tue, 6 Dec 2011 16:06:37 -0800 (PST) Received: by 10.224.199.134 with SMTP id es6mr14447757qab.2.1323216395590; Tue, 06 Dec 2011 16:06:35 -0800 (PST) Return-Path: <[email protected]> Received: from mail.domain.com (domain.com. [nnnn]) by mx.google.com with ESMTP id b16si7471407qcv.131.2011.12.06.16.06.35; Tue, 06 Dec 2011 16:06:35 -0800 (PST) Received-SPF: pass (google.com: domain of [email protected] designates nnnn as permitted sender) client-ip=nnnn; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates nnnn as permitted sender) [email protected] Received: by mail.domain.com (Postfix, from userid 5001) id 26ADE381E3; Tue, 6 Dec 2011 19:06:35 -0500 (EST) Received: from domain.com (domain.com [127.0.0.1]) by mail.domain.com (Postfix) with ESMTP id 0148638030 for <[email protected]>; Tue, 6 Dec 2011 19:06:31 -0500 (EST) Date: Tue, 06 Dec 2011 19:06:31 -0500 From: DomainApp <[email protected]> Reply-To: [email protected] To: [email protected] Message-ID: <[email protected]> Subject: Roman Snitko says hi Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-No-Spam: True Precedence: bulk List-Unsubscribe: [email protected] 

邮件到各种Gmail帐户的垃圾邮件文件夹，所以这不是巧合。

我从https://mail.google.com/support/bin/answer.py?hl=zh_CN&answer=81126发送群发电子邮件后，关注了所有Gmail指南。 我也检查了我的IP地址http://www.dnsblcheck.co.uk/ ，它不在黑名单上。

因此我有两个问题：

• 在Linux上自动启动postfix
• Virtualmin与Postfixconfiguration是不安全的
• 发送错误的“发件人”地址的电子邮件
• 从后缀检查Exchange配额使用/防止使用Postfix + Exchange的后向散射
• 无法达到我的替代SMTP端口

1. 邮件到垃圾邮件文件夹可能是什么原因？
2. 有什么办法联系Google，询问他们是什么原因造成的？

更新：我已经在我的服务器上设置了openDKIM，一切正常，gmail邮件标题说dkim=pass ，这意味着一切都设置正确。 邮件仍然以垃圾邮件文件夹结束。