我最近将我的服务器移到了 slicehost 上的一个新切片，从那以后，gmail 一直将我的电子邮件标记为垃圾邮件。我添加了域密钥，创建了 SPF 记录，进行了反向 dns 设置，而且我的 ip 没有被列入黑名单。这是来自服务器电子邮件的标题：
Delivered-To: address@gmail.com
Received: by 10.204.190.208 with SMTP id dj16csp73539bkb;
Thu, 1 Mar 2012 14:16:43 -0800 (PST)
Received: by 10.236.170.193 with SMTP id p41mr7956047yhl.15.1330640203327;
Thu, 01 Mar 2012 14:16:43 -0800 (PST)
Return-Path: <no-reply@wordstash.com>
Received: from wordstash.com (wordstash.com. [174.143.24.37])
by mx.google.com with ESMTP id i19si1775474anm.152.2012.03.01.14.16.42;
Thu, 01 Mar 2012 14:16:43 -0800 (PST)
Received-SPF: pass (google.com: domain of no-reply@wordstash.com designates 174.143.24.37 as permitted sender) client-ip=174.143.24.37;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of no-reply@wordstash.com designates …