我正在运行带有 plesk 面板的 ubuntu 服务器，从该服务器发送的邮件直接进入垃圾邮件文件夹。所有记录看起来都很完美，例如 spf、DKIM、域密钥、PTR 等。
我真的被这个问题困扰了。我不知道还要检查什么。
邮件标题如下：
Delivered-To: [email protected]
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Message-ID: <[email protected]>
Date: Mon, 14 Jul 2014 19:53:19 +0200
From: [email protected]
To: [email protected]
Subject: t
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