在 Google Apps 管理中,在电子邮件设置(服务设置 > 电子邮件)下,我可以选择指定一个全部接收地址或丢弃电子邮件。
但是,我想知道如何配置拒绝电子邮件(即 550 错误)而不是简单地丢弃它,因为我想让发送到错误地址的人知道他们发送到了错误的地址。
实现此目的的方法有哪些?我是否设置一个万能地址,然后使用生成 550 条拒绝通知的守护进程监视该邮箱?我是否对我的 MX 记录做了一些疯狂的事情?
答案1
如果您没有设置全部捕获地址,Google Apps 已经发送 550 错误。
这是我刚刚从我的 Gmail 帐户向 Google Apps 域 (example.org) 上的无效帐户发送的消息的结果。名称已更改以保护罪犯。域设置为“丢弃”。
Delivered-To: [email protected]
Received: by 10.216.45.139 with SMTP id p11cs30689web;
Tue, 21 Sep 2010 12:05:45 -0700 (PDT)
Received: by 10.216.176.83 with SMTP id a61mr9625704wem.47.1285095944841;
Tue, 21 Sep 2010 12:05:44 -0700 (PDT)
MIME-Version: 1.0
Return-Path: <>
Received: by 10.216.176.83 with SMTP id a61mr12854859wem.47; Tue, 21 Sep 2010
12:05:44 -0700 (PDT)
From: Mail Delivery Subsystem <[email protected]>
To: [email protected]
X-Failed-Recipients: [email protected]
Subject: Delivery Status Notification (Failure)
Message-ID: <[email protected]>
Date: Tue, 21 Sep 2010 19:05:44 +0000
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Delivery to the following recipient failed permanently:
[email protected]
Technical details of permanent failure:=20
Google tried to deliver your message, but it was rejected by the recipient
domain. We recommend contacting the other email provider for further inform
ation about the cause of this error. The error that the other server return
ed was: 550 550-5.1.1 The email account that you tried to reach does not ex
ist. Please try
550-5.1.1 double-checking the recipient's email address for typos or
550-5.1.1 unnecessary spaces. Learn more at
550 5.1.1 http://mail.google.com/support/bin/answer.py?answer=3D6596 p70si1
2864980weq.200 (state 14).
----- Original message -----
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Received: by 10.216.176.83 with SMTP id a61mr9625683wem.47.1285095944055; T
ue,
21 Sep 2010 12:05:44 -0700 (PDT)
Received: by 10.216.45.139 with HTTP; Tue, 21 Sep 2010 12:05:44 -0700 (PDT)
Date: Tue, 21 Sep 2010 12:05:44 -0700
Message-ID: <[email protected]
>
Subject: invalid user test
From: Chris Francy <[email protected]>
To: [email protected]
Content-Type: text/plain; charset=3DISO-8859-1
invalid user test
答案2
我使用一个具有休假响应功能的万能账户。
由于传入的垃圾邮件已被 Google 过滤,因此不会产生反向散射。因此 Vacation 响应程序仅回复地址错误的“真实”邮件。
该综合帐户还会将所有收到的邮件的副本转发给我,以便我可以对其进行监控。
答案3
Google Apps 的配置方式是一种越来越常见的邮件配置方式。恶意实体完全有可能通过将常用用户名投递到邮件域来执行相当于目录攻击的操作,以及任何没有产生 550 错误的地址被视为已验证的有效地址(我们办公室里有一个人的帐户名为“steve”。他收到的垃圾邮件比您多)。如果您从未返回 550,他们就无法知道他们发现了错误的地址。
在这个基于 IP 信誉的反垃圾邮件系统时代,它的实用性在一定程度上是有争议的,但对某些人来说,它很重要。
答案4
只需创建一个带有自动回复器的万能地址即可。您可以使用自动回复器让人们知道他们已经向不存在的用户发送了邮件。