我有一个简单的 PHP 脚本，它为我网站上的用户生成一封电子邮件。出于某种原因，大多数邮件都被发送到用户的垃圾邮件文件夹。我设置了一个 hotmail 帐户来测试这一点，现在我正在尝试分析标头以检查为什么它会被添加到垃圾邮件文件夹中。
我得到的标题包括在下面。似乎没有任何与垃圾邮件（即 spamassassin）相关的信息。我想知道是否有人可以检测到问题可能是什么？
x-store-info:4r51+eLowCe79NzwdU2kRyU+pBy2R9QCj0/8P6fDMVumMo6iGJG5XQGQsGw4y+KC5jGdX6A7+/ZVHRw3c8psWXtc+cAfssqe5kw3LdG9RbC+kh049fg5aL5vFishJNonRedbn/JCR2Y=
Authentication-Results: hotmail.com; sender-id=pass (sender IP is 208.53.158.38) header.from=info@****.com; dkim=pass header.d=****.com; x-hmca=pass
X-SID-PRA: info@****.com
X-Message-Status: n:0:n
X-SID-Result: Pass
X-DKIM-Result: Pass
X-AUTH-Result: PASS
X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0wO0Q9MjtHRD0yO1NDTD02
X-Message-Info: M98loaK0Lo1tWPCbe4OE0UbDdVDXEICZZMNsQz6Wthy3jeg8lyZ+D9euQ2riH1WvmBV23btdBFelBmKMH/9LOMR9or7uhXgxLWPa0gAZnJxsZCwy+xyGPBu8cHXLoyzG0CR/fKSJcN+zLjJCNkZvew==
Received: from itchy.cirtexhosting.com ([208.53.158.38]) by COL0-MC2-F40.Col0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4900);
Sun, 22 Jul 2012 16:56:31 -0700
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=****.com; s=default;
h=Subject:To:From; bh=ZwVnoaT/AbcAu6/7wnV5p3ZMSyLI5Eg9h9kKTJTmUL4=;
b=LTP74QdOU6Yt71wIr+J3PKWQUnGLUKRyU/Ps+ZM+OPgGOwfAeAvbPVemSl+dEh2u0VYtiuCdl5WvSK5zzQh+OV4KiBcy0xNj1vaRnBuUORgBY+SEIXu5TgLf3CbEZY0u;
Received: from itchy.cirtexhosting.com ([208.53.158.38]:26249 helo=localhost)
by itchy.cirtexhosting.com with esmtpsa (TLSv1:AES256-SHA:256)
(Exim 4.77)
(envelope-from <info@****.com>)
id 1St60G-0000kF-Oq
for ****@hotmail.com; Sun, 22 Jul 2012 19:56:01 -0400
From: Marvelous Monthly Mix Up <info@****.com>
To: ****@hotmail.com
Subject: Welcome to the Marvelous Monthly Mix Up
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - itchy.cirtexhosting.com
X-AntiAbuse: Original Domain - hotmail.com
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - ****.com
X-Source:
X-Source-Args:
X-Source-Dir:
Return-Path: info@****.com
Message-ID: <COL0-MC2-F40nkB4ltF00b5209d@COL0-MC2-F40.Col0.hotmail.com>
X-OriginalArrivalTime: 22 Jul 2012 23:56:31.0807 (UTC) FILETIME=[9E28C4F0:01CD6865]