我从服务器发送电子邮件时遇到问题。问题是，当我发信给gmail.сom，yahoo.com时，它会进入垃圾邮件文件夹。我尝试了很多东西。以下是关于我信件特征的简要报告。
yandex.ru，mail.ru，rambler.ru从我的服务器接收电子邮件没有问题
我的电子邮件服务器： ip 94.242.7.157 主持mail.da.am 只听localhost：25（拒绝其他连接）
Spamhaus没问题http://www.spamhaus.org/query/ip/94.242.7.157
（两周前我已经从spamhaus PBL删除了我的ip，这是旧问题）
还有46个黑名单可以http://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a94.242.7.157&run=toolpage
PTR 记录似乎没问题 DKIM 签名被谷歌和雅虎标记为“通过” SPF 签名由google和yahoo标记为“通过” DMARC 签名由Google和yahoo标记为“通过”
雅虎出于不明原因标记了我的电子邮件 X-YahooFilteredBulk：94.242.7.157
以下是gmail示例信的原始内容。这是激活信，它刚刚在我的网站上注册后发送给用户：
Delivered-To: a@da.am
Received: by 10.112.20.73 with SMTP id l9csp105062lbe;
Wed, 17 Apr 2013 09:25:42 -0700 (PDT)
X-Received: by 10.112.155.40 with SMTP id vt8mr3898247lbb.70.1366215942667;
Wed, 17 Apr 2013 09:25:42 -0700 (PDT)
Return-Path: <robot@bannerd.ru>
Received: from mail.da.am (mail.da.am. [94.242.7.157])
by mx.google.com with ESMTP id o5si471161laj.179.2013.04.17.09.25.42;
Wed, 17 Apr 2013 09:25:42 -0700 (PDT)
Received-SPF: pass (google.com: domain of robot@bannerd.ru designates 94.242.7.157 as permitted sender) client-ip=94.242.7.157;
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of robot@bannerd.ru designates 94.242.7.157 as permitted sender) smtp.mail=robot@bannerd.ru;
dkim=pass header.i=@bannerd.ru;
dmarc=pass (p=NONE dis=none) d=bannerd.ru
Received: by mail.da.am (Postfix, from userid 33)
id 9E92D1E80373; Wed, 17 Apr 2013 20:25:41 +0400 (MSK)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bannerd.ru;
s=bannerd; t=1366215941;
bh=ARMYABZee/pyG7UP+Jdc9zS/Nr4Dh7RDeIMT+hFEgGo=;
h=To:Subject:List-Unsubscribe:Reply-To:From:Date;
b=QhLO9vL0Y5w0ctl+v3S1atnlTa5Eq6PjJGG91Sb4TfMb5xCKB6UqoKQWnMeKlOcbk
SMhlwSbD8CsSkvppFMpKygjPl1+xHkLWv8a9mzNtdDvtoGMZX++Hiy5rdiUItcoQDm
aH/nWQg0RPNSSq3e3PdYbIbRk0ldgUA9yl9NavmQ=
To: a@da.am
Subject: =?UTF-8?B?0J/QvtC00YLQstC10YDQtNC40YLQtSwg0L/QvtC20LDQu9GD0LnRgdGC0LAs?=
=?UTF-8?B?INCw0LTRgNC10YEg0Y3Qu9C10LrRgtGA0L7QvdC90YvQuSDQv9C+0YfRgtGL?=
=?UTF-8?B?INC00LvRjyDQstCw0YjQtdCz0L4g0LDQutC60LDRg9C90YLQsA==?=
MIME-Version: 1.0
List-Unsubscribe: <mailto:support@bannerd.ru>
Reply-To: =?UTF-8?B?0J/QvtC00LTQtdGA0LbQutCwIEJhbm5lcmQucnU=?= <support@bannerd.ru>
Return-Receipt-To: <robot@bannerd.ru>
From: =?UTF-8?B?0KDQvtCx0L7Rgi3Qv9C+0YfRgtCw0LvRjNC+0L0gQmFubmVyZC5ydQ==?= <robot@bannerd.ru>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: base64
Message-Id: <20130417162541.9E92D1E80373@mail.da.am>
Date: Wed, 17 Apr 2013 20:25:41 +0400 (MSK)
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拜托，帮助我！