我已经注意到有几次我收到了Delivery Status Notification (Failure)我未发送的电子邮件。我担心其他人正在使用我的帐户发送垃圾邮件，但我对这类事情的了解有限。
这是我的设置：
- 个人域上的 Google Apps
- 2FA 认证，32 个字符的密码（不可与任何其他帐户重复使用）
- 设置 DKIM 来验证外发电子邮件
以上内容让我非常有信心，我不需要担心电子邮件。Google 会处理好棘手的事情，我会设置安全措施来满足我的风险偏好。
以下是我收到的其中一封电子邮件的示例：
Delivered-To: [email protected]
Received: by 10.28.230.77 with SMTP id d74csp2527957wmh;
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
X-Received: by 10.28.51.205 with SMTP id z196mr12396419wmz.22.1487253406837;
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
Return-Path: <>
Received: from mail-wm0-x244.google.com (mail-wm0-x244.google.com. [2a00:1450:400c:c09::244])
by mx.google.com with ESMTPS id z26si7277207wrz.96.2017.02.16.05.56.46
for <[email protected]>
(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
Received-SPF: pass (google.com: best guess record for domain of [email protected] designates 2a00:1450:400c:c09::244 as permitted sender) client-ip=2a00:1450:400c:c09::244;
Authentication-Results: mx.google.com;
dkim=pass [email protected];
spf=pass (google.com: best guess record for domain of [email protected] designates 2a00:1450:400c:c09::244 as permitted sender) smtp.helo=mail-wm0-x244.google.com;
dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=googlemail.com
Received: by mail-wm0-x244.google.com with SMTP id r18so3245363wmd.3
for <[email protected]>; Thu, 16 Feb 2017 05:56:46 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=googlemail.com; s=20161025;
h=from:to:auto-submitted:subject:references:in-reply-to:message-id
:date;
bh=mZaso4RaS6Rf+0QVb1hTu2CwYlfXSyEt+yTtW7hR8uk=;
b=JZYDQJVNVPKjA4Vq876gSrhWhjsXaHpAMnMY+y5Z9XZb/e7wVS7rxnOPzLYM/gO6ic
6J8e/E94h1Uk/Hgrzk9G+poYUcuESpe2R1sF7y2+XnMsd00gJfbnQb9rQQK/IGVlL/vi
8XHDawTG8ndMH0r9h003UIRGrKpt8T5jx5bdSaB8nTSvS9aaeSABBviwCvKHZGoWYveR
cDQjvmtLAwIFO5k+4p/g4JpsYlZ2ojEN6fAIARwiXD2rVnROjDRWUMvCvDUPAlkWOKs8
On8Jvp8qm0cUA1Dw/yIxA2hkxwYzqn9jwMygqjUCxDjM3YNBuWlcAdk0GJdUJZC+MB/O
mPww==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=x-gm-message-state:from:to:auto-submitted:subject:references
:in-reply-to:message-id:date;
bh=mZaso4RaS6Rf+0QVb1hTu2CwYlfXSyEt+yTtW7hR8uk=;
b=lNavoK0q1Ic3pUvUQTypuNIITK1HVvq9BaRO5ar5Qs7OUU9hXRgcUbZsu7LaHtj+9g
W5W37mG/HrlpG7XubPE1kqzqoN/tweLAmugnbijBH0d5Kl8Qaw2gxyEvll8zlBGDcJ5e
ybIeUvJLVyXLw2zP1IPlFcM3rmt/8DULsCZ0QNarGigUyTkNc8+tI7Um7OPE6jSPGmhg
7HPBX6Qgjq33T2RJdv9V9FeL7eTlB6yTTIC60NDsWdzLGS2CEPw+wlF9iGpleNf+fsZk
WqHd323ds91smc5QXLs+yaH98gIRU4dYBoCtqfs8axxncBbPkzlYx5tIseTBsL4oXiTQ
KvIw==
X-Gm-Message-State: AMke39llod4HSPtWN0UbX5cUGczBpbi+v8wlvcKYXUWllEul0FQDOWx/SYOPpTkn/8iOdVJHu+tQUqoSHFlDxDcLdh/ba4/TXpKVCp4=
X-Received: by 10.28.194.5 with SMTP id s5mr1688371wmf.98.1487253406629;
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
Content-Type: multipart/report; boundary=001a114b06eefe38320548a62ae8; report-type=delivery-status
Return-Path: <>
Received: by 10.28.194.5 with SMTP id s5mr1816172wmf.98; Thu, 16 Feb 2017
05:56:46 -0800 (PST)
From: Mail Delivery Subsystem <[email protected]>
To: [email protected]
Auto-Submitted: auto-replied
Subject: Delivery Status Notification (Failure)
References: <[email protected]>
In-Reply-To: <[email protected]>
Message-ID: <[email protected]>
Date: Thu, 16 Feb 2017 05:56:46 -0800 (PST)
--001a114b06eefe38320548a62ae8
Content-Type: multipart/related; boundary=001a114b06eefe38a60548a62ae9
--001a114b06eefe38a60548a62ae9
Content-Type: multipart/alternative; boundary=001a114b06eefe38aa0548a62aea
--001a114b06eefe38aa0548a62aea
Content-Type: text/plain; charset=UTF-8
** Address not found **
Your message wasn't delivered to [email protected] because the address couldn't be found. Check for typos or unnecessary spaces and try again.
Learn more here: https://support.google.com/mail/?p=NoSuchUser
The response from the remote server was:
550 5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. Learn more at https://support.google.com/mail/?p=NoSuchUser y128si668637wme.153 - gsmtp
--001a114b06eefe38aa0548a62aea
Content-Type: text/html; charset=UTF-8
<html>
<head>
<style>
* {
font-family:Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
}
</style>
</head>
<body>
<table cellpadding="0" cellspacing="0" class="email-wrapper" style="padding-top:32px;background-color:#ffffff;"><tbody>
<tr><td>
<table cellpadding=0 cellspacing=0><tbody>
<tr><td style="max-width:560px;padding:24px 24px 32px;background-color:#fafafa;border:1px solid #e0e0e0;border-radius:2px">
<img style="padding:0 24px 16px 0;float:left" width=72 height=72 alt="Error Icon" src="cid:icon.png">
<table style="min-width:272px;padding-top:8px"><tbody>
<tr><td><h2 style="font-size:20px;color:#212121;font-weight:bold;margin:0">
Address not found
</h2></td></tr>
<tr><td style="padding-top:20px;color:#757575;font-size:16px;font-weight:normal;text-align:left">
Your message wasn't delivered to <a style='color:#212121;text-decoration:none'><b>[email protected]</b></a> because the address couldn't be found. Check for typos or unnecessary spaces and try again.
</td></tr>
<tr><td style="padding-top:24px;color:#4285F4;font-size:14px;font-weight:bold;text-align:left">
<a style="text-decoration:none" href="https://support.google.com/mail/?p=NoSuchUser">LEARN MORE</a>
</td></tr>
</tbody></table>
</td></tr>
</tbody></table>
</td></tr>
<tr style="border:none;background-color:#fff;font-size:12.8px;width:90%">
<td align="left" style="padding:48px 10px">
The response from the remote server was:<br/>
<p style="font-family:monospace">
550 5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. Learn more at https://support.google.com/mail/?p=NoSuchUser y128si668637wme.153 - gsmtp
</p>
</td>
</tr>
</tbody></table>
</body>
</html>
--001a114b06eefe38aa0548a62aea--
--001a114b06eefe38a60548a62ae9
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Content-Disposition: attachment; filename="icon.png"
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--001a114b06eefe38a60548a62ae9--
--001a114b06eefe38320548a62ae8
Content-Type: message/delivery-status
Reporting-MTA: dns; googlemail.com
Received-From-MTA: dns; [email protected]
Arrival-Date: Thu, 16 Feb 2017 05:56:46 -0800 (PST)
X-Original-Message-ID: <[email protected]>
Final-Recipient: rfc822; [email protected]
Action: failed
Status: 5.1.1
Remote-MTA: dns; aspmx.l.google.com. (64.233.184.27, the server for the domain gone.bristol.ac.uk.)
Diagnostic-Code: smtp; 550-5.1.1 The email account that you tried to reach does not exist. 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 https://support.google.com/mail/?p=NoSuchUser y128si668637wme.153 - gsmtp
Last-Attempt-Date: Thu, 16 Feb 2017 05:56:46 -0800 (PST)
--001a114b06eefe38320548a62ae8
Content-Type: message/global
X-Google-DKIM-Signature: v=3D1; a=3Drsa-sha256; c=3Drelaxed/relaxed;
d=3D1e100.net; s=3D20161025;
h=3Dx-gm-message-state:x-original-authentication-results:from:to:da=
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X-Received: by 10.28.194.5 with SMTP id s5mr1688355wmf.98.1487253406479;
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
X-Received: by 10.28.194.5 with SMTP id s5mr1688348wmf.98.1487253406319;
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
Return-Path: <[email protected]>
Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com. [209.85.=
128.197])
by mx.google.com with ESMTPS id f200si612772wme.108.2017.02.16.05.5=
6.46
for <[email protected]>
(version=3DTLS1_2 cipher=3DECDHE-RSA-AES128-GCM-SHA256 bits=3D128/1=
28);
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
Received-SPF: neutral (google.com: 209.85.128.197 is neither permitted nor =
denied by best guess record for domain of [email protected]) clien=
t-ip=3D209.85.128.197;
Authentication-Results: mx.google.com;
spf=3Dneutral (google.com: 209.85.128.197 is neither permitted nor d=
enied by best guess record for domain of [email protected]) smtp.m=
[email protected]
Received: by mail-wr0-f197.google.com with SMTP id y7so3180714wrc.7
for <[email protected]>; Thu, 16 Feb 2017 05:56:46 -0800 (PST=
)
X-Original-Authentication-Results: mx.google.com; spf=3Dneutral (goog=
le.com: 190.67.150.7 is neither permitted nor denied by best guess record f=
or domain of [email protected]) smtp.mailfrom=3Ddropbox@williammay=
or.co.uk
X-Received: by 10.223.136.205 with SMTP id g13mr2341030wrg.56.1487253406058=
;
Thu, 16 Feb 2017 05:56:46 -0800 (PST)
X-Received: by 10.223.136.205 with SMTP id g13mr2341026wrg.56.1487253405942=
;
Thu, 16 Feb 2017 05:56:45 -0800 (PST)
Return-Path: <[email protected]>
Received: from [190.67.150.7] ([190.67.150.7])
by mx.google.com with ESMTP id 6si9416331wrr.155.2017.02.16.05.56.4=
3
for <[email protected]>;
Thu, 16 Feb 2017 05:56:45 -0800 (PST)
Received-SPF: neutral (google.com: 190.67.150.7 is neither permitted nor de=
nied by best guess record for domain of [email protected]) client-=
ip=3D190.67.150.7;
From: <[email protected]>
To: <[email protected]>
Date: 16 Feb 2017 02:22:38 -0600
MIME-Version: 1.0
Subject: Local representation needed for the International Company
Message-ID: <[email protected]>
Priority: normal
X-mailer: Pegasus Mail for Windows (4.61)
Content-type: multipart/alternative; boundary=3D"Alt-Boundary-29754.9314526=
"
Dear th3801,
We are looking for employees working remotely.
My name is Major, I am the personnel manager of a large International compa=
ny.
Most of the work you can do from home, that is, at a distance.
Salary is $2200-$5400.
If you are interested in this offer, please visit=20
Our Site
d_healthBest regards!
--001a114b06eefe38320548a62ae8--
如您所见，该电子邮件似乎是从 发送的[email protected]，这不是真正的电子邮件地址。我在我的域名上设置了一个通配符别名，因此我可以注册帐户而不泄露我的实际地址。似乎有人找到了我的 Dropbox 帐户？
原始电子邮件是有关远程工作的某种垃圾邮件/欺诈邮件。已发送至布里斯托大学账户。
我的想法是：
- 有人发送电子邮件并冒充我的电子邮件地址
- 有人试图欺骗我，让我以为他们在这么做
发生了什么事？我该如何阻止它？我在这里犯了什么错误？我依靠 Google Apps 来处理棘手的部分，我担心我错过了一些重要的东西（尤其是因为我使用 Google Apps 管理其他 IT 基础设施）。
谢谢！