在我的服务器上，我将邮件重定向至[email protected]、至[email protected]和[email protected]文件/etc/aliases。
[email protected]最近我在我的邮箱（[email protected]邮件被重定向到的地方）收到了以下电子邮件：
Received: by 10.52.34.73 with SMTP id ...;
Sun, 27 Apr 2014 03:37:39 -0700 (PDT)
...
Received: from myhost (... [16.19.64.110])
by mx.google.com with ESMTPS id ...
for <[email protected]>
(version=TLSv1 cipher=RC4-SHA bits=128/128);
Sun, 27 Apr 2014 03:37:39 -0700 (PDT)
...
Received: from Debian-exim by myhost with local (Exim 4.72)
id ...
for [email protected]; Fri, 25 Apr 2014 13:17:05 +0300
...
Date: Fri, 25 Apr 2014 13:17:05 +0300
...
To: [email protected]
Message frozen
Message 1WddBb-0007hU-1l has been frozen (delivery error message).
The sender is <>.
The following address(es) have yet to be delivered:
[email protected] <[email protected]>: SMTP error from remote mail server after MAIL FROM:<> SIZE=1558: host gmail-smtp-in.l.google.com [74.125.201.108]: 530-5.5.1 Authentication Required. Learn more at\n530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 h7sm7285577igy.2 - gsmtp
[email protected] <[email protected]>: SMTP error from remote mail server after MAIL FROM:<> SIZE=1558: host gmail-smtp-in.l.google.com [74.125.201.108]: 530-5.5.1 Authentication Required. Learn more at\n530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 h7sm7285577igy.2 - gsmtp
然后我运行：
# exigrep -l 1WddBb-0007hU-1l $(find /var/log/exim4 -name 'mainlog*' | sort -rn -t . -k2,2)
2014-04-25 13:17:02 1WddBb-0007hU-1l <= <> H=(115.78.92.64) [118.69.183.136] P=smtp S=522
2014-04-25 13:17:02 1WddBb-0007hU-1l gmail-smtp-in.l.google.com [2a00:1450:4013:c01::1a] Network is unreachable
2014-04-25 13:17:03 1WddBb-0007hU-1l SMTP error from remote mail server after end of data: host gmail-smtp-in.l.google.com [74.125.136.26]: 421-4.7.0 [16.19.64.110 15] Our system has detected an unusual rate of\n421-4.7.0 unsolicited mail originating from your IP address. To protect our\n421-4.7.0 users from spam, mail sent from your IP address has been temporarily\n421-4.7.0 rate limited. Please visit http://www.google.com/mail/help/bulk_mail.\n421 4.7.0 html to review our Bulk Email Senders Guidelines. t3si12446024eeg.301 - gsmtp
2014-04-25 13:17:03 1WddBb-0007hU-1l SMTP error from remote mail server after end of data: host gmail-smtp-in.l.google.com [74.125.136.27]: 421-4.7.0 [16.19.64.110 15] Our system has detected an unusual rate of\n421-4.7.0 unsolicited mail originating from your IP address. To protect our\n421-4.7.0 users from spam, mail sent from your IP address has been temporarily\n421-4.7.0 rate limited. Please visit http://www.google.com/mail/help/bulk_mail.\n421 4.7.0 html to review our Bulk Email Senders Guidelines. x46si12473877eea.209 - gsmtp
2014-04-25 13:17:05 1WddBb-0007hU-1l ** [email protected] <[email protected]> R=dnslookup T=remote_smtp: SMTP error from remote mail server after MAIL FROM:<> SIZE=1558: host gmail-smtp-in.l.google.com [74.125.201.108]: 530-5.5.1 Authentication Required. Learn more at\n530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 h7sm7285577igy.2 - gsmtp
2014-04-25 13:17:05 1WddBb-0007hU-1l ** [email protected] <[email protected]> R=dnslookup T=remote_smtp: SMTP error from remote mail server after MAIL FROM:<> SIZE=1558: host gmail-smtp-in.l.google.com [74.125.201.108]: 530-5.5.1 Authentication Required. Learn more at\n530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 h7sm7285577igy.2 - gsmtp
2014-04-25 13:17:05 1WddBb-0007hU-1l Frozen (delivery error message)
2014-04-25 13:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 14:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 14:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 15:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 15:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 16:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 16:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 17:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 17:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 18:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 18:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 19:07:58 1WddBb-0007hU-1l Message is frozen
2014-04-25 19:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 20:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 20:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 21:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 21:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 22:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 22:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 23:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-25 23:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 00:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 00:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 01:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 01:37:58 1WddBb-0007hU-1l Message is frozen
2014-04-26 02:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 02:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 03:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 03:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 04:07:38 1WddBb-0007hU-1l Message is frozen
2014-04-26 04:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 05:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 05:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 06:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 06:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 07:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 07:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 08:07:58 1WddBb-0007hU-1l Message is frozen
2014-04-26 08:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 09:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 09:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 10:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 10:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 11:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 11:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 12:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 12:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 13:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 13:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 14:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 14:37:58 1WddBb-0007hU-1l Message is frozen
2014-04-26 15:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 15:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 16:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 16:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 17:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 17:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 18:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 18:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 19:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 19:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 20:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 20:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 21:07:58 1WddBb-0007hU-1l Message is frozen
2014-04-26 21:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 22:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 22:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 23:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-26 23:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 00:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 00:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 01:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 01:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 02:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 02:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 03:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 03:37:58 1WddBb-0007hU-1l Message is frozen
2014-04-27 04:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 04:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 05:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 05:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 06:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 06:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 07:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 07:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 08:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 08:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 09:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 09:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 10:07:58 1WddBb-0007hU-1l Message is frozen
2014-04-27 10:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 11:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 11:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 12:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 12:37:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 13:07:37 1WddBb-0007hU-1l Message is frozen
2014-04-27 13:37:37 1WddBb-0007hU-1l Unfrozen by errmsg timer
2014-04-27 13:37:38 1WddBb-0007hU-1l => [email protected] <[email protected]> R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com [74.125.136.27] X=TLS1.0:RSA_ARCFOUR_SHA1:16 DN="C=US,ST=California,L=Mountain View,O=Google Inc,CN=mx.google.com"
2014-04-27 13:37:38 1WddBb-0007hU-1l -> [email protected] <[email protected]> R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com [74.125.136.27] X=TLS1.0:RSA_ARCFOUR_SHA1:16 DN="C=US,ST=California,L=Mountain View,O=Google Inc,CN=mx.google.com"
2014-04-27 13:37:38 1WddBb-0007hU-1l Completed
2014-04-25 13:17:05 1WddBd-0007hk-1p <= <> R=1WddBb-0007hU-1l U=Debian-exim P=local S=1111
2014-04-25 13:17:06 1WddBd-0007hk-1p ** [email protected] <[email protected]> R=dnslookup T=remote_smtp: SMTP error from remote mail server after MAIL FROM:<> SIZE=2150: host gmail-smtp-in.l.google.com [74.125.201.109]: 530-5.5.1 Authentication Required. Learn more at\n530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 p7sm7216866igg.15 - gsmtp
2014-04-25 13:17:06 1WddBd-0007hk-1p Frozen (delivery error message)
2014-04-25 13:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 14:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 14:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 15:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 15:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 16:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 16:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 17:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 17:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 18:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 18:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 19:07:58 1WddBd-0007hk-1p Message is frozen
2014-04-25 19:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 20:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 20:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 21:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 21:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 22:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 22:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 23:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-25 23:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 00:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 00:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 01:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 01:37:58 1WddBd-0007hk-1p Message is frozen
2014-04-26 02:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 02:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 03:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 03:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 04:07:38 1WddBd-0007hk-1p Message is frozen
2014-04-26 04:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 05:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 05:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 06:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 06:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 07:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 07:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 08:07:58 1WddBd-0007hk-1p Message is frozen
2014-04-26 08:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 09:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 09:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 10:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 10:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 11:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 11:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 12:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 12:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 13:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 13:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 14:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 14:37:58 1WddBd-0007hk-1p Message is frozen
2014-04-26 15:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 15:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 16:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 16:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 17:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 17:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 18:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 18:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 19:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 19:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 20:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 20:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 21:07:58 1WddBd-0007hk-1p Message is frozen
2014-04-26 21:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 22:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 22:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 23:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-26 23:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 00:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 00:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 01:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 01:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 02:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 02:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 03:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 03:37:58 1WddBd-0007hk-1p Message is frozen
2014-04-27 04:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 04:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 05:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 05:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 06:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 06:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 07:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 07:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 08:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 08:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 09:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 09:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 10:07:58 1WddBd-0007hk-1p Message is frozen
2014-04-27 10:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 11:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 11:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 12:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 12:37:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 13:07:37 1WddBd-0007hk-1p Message is frozen
2014-04-27 13:37:38 1WddBd-0007hk-1p Unfrozen by errmsg timer
2014-04-27 13:37:39 1WddBd-0007hk-1p => [email protected] <[email protected]> R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com [74.125.136.27] X=TLS1.0:RSA_ARCFOUR_SHA1:16 DN="C=US,ST=California,L=Mountain View,O=Google Inc,CN=mx.google.com"
2014-04-27 13:37:39 1WddBd-0007hk-1p Completed
首先，我对它的解释有些困难。
我们收到了来自 的退回邮件118.69.183.136。但为什么它会反弹到和[email protected]呢[email protected]？他们是否都发送了一封无法送达的电子邮件？不太可能。
然后谷歌回复“421-4.7.0 [16.19.64.110 15] 我们的系统检测到来自您的 IP 地址的未经请求的邮件数量异常。为了保护我们的用户免受垃圾邮件的侵扰，从您的 IP 地址发送的邮件数量已暂时受到限制。请访问http://www.google.com/mail/help/bulk_mail.html查看我们的批量电子邮件发件人指南。”这是什么意思？[email protected]是一个反馈邮箱，重定向到[email protected]和[email protected]。我怀疑他们发送了很多电子邮件。您能建议一种方法来计算它们吗？
结果又生成了一条退回邮件[email protected]。但现在谷歌回复“530-5.5.1 需要身份验证”。了解更多信息http://support.google.com/mail/bin/answer.py?answer=14257“我也不明白这一点。我现在可以[email protected]正常发送消息了。
最后，退回邮件被送达。我正在运行debian 6。你能解释一下发生了什么以及我该怎么办吗？
答案1
We got bounce message from 118.69.183.136. But why does it bounce to both [email protected] and [email protected]? Did they both send an email, which could not be delivered? Unlikely.
它不会反弹到这两个地址，而是会反弹给邮政局长，告诉您向这两个地址的投递失败。
Then google replies with "421-4.7.0 [16.19.64.110 15] Our system has detected an unusual rate of unsolicited mail originating from your IP address. To protect our users from spam, mail sent from your IP address has been temporarily rate limited. Please visit http://www.google.com/mail/help/bulk_mail.html to review our Bulk Email Senders Guidelines." What is this supposed to mean?
这意味着您受到了速率限制。您应该访问所述 URL 以获取更多信息。其中哪些部分不清楚？
I doubt they send a lot of emails. Would you suggest a way to count them?
你找错了对象。这条信息清楚地表明，你的IP地址发送的电子邮件太多。这与邮件发给或发自谁无关，只是从该 IP 地址（您的服务器）发送到 Google 的邮件数量。这包括由于退回/失败而生成到邮政局长的邮件，这些邮件正在转发到您的 Gmail 帐户。
您应该意识到，这里您遇到了一个难题：如果 Google 限制从您的系统发送到他们系统的消息数量，而您的错误（退回、警告）也会发送到 Google。
In the end, the bounce messages get delivered. I'm running debian 6. Could you explain me what's going on and what am I to do?
您已从您的 IP 向 Gmail 服务器发送了足够多的邮件，Google 已暂时地（正如日志中明确指出的那样）速率受限。这些邮件生成错误（警告），表示无法立即发送。然后，这些邮件被转发到另一个 Gmail 地址，这会导致更多尝试从您的 IP 通过 Google 服务器发送电子邮件，这可能会使问题变得更糟。
一旦他们的暂时的速率限制已经解除，那么您的消息将会按预期通过。
and what am I to do?
- 您应该遵循 Google 在错误消息中提供的指南。
- 您应该停止将邮政局长邮件转发到 Google，以减少您的系统发送给他们的消息数量。
如果这些都失败了，你应该考虑向 Google 付费以正确托管域名和/或停止将消息转发到 Gmail 帐户。
答案2
是的，是的，这是一个六年前的问题。
但是，我发现如果您有邮件循环，您就会收到此消息。我有一组过滤器，其中我的业务域转发到我的个人 Gmail。我的 Gmail 转发回我的公司。
Google 非常擅长检测循环，因此它不会每次都出错。但有一次，在重新设置过滤器后，我断断续续地遇到了这个问题，持续了大约 2 周。奇怪的是，错误消息出现的时间范围从几乎立即出现到原始消息出现几天后。