Ale*_*ner 25 email email-server smtp postfix spam
我有一个网站，需要向客户发送电子邮件以交付他们购买的文件。可靠的电子邮件传递对这项业务至关重要。不幸的是，由于我的 MTA 的“声誉不佳”，我的服务器发送的大部分电子邮件都没有送达。以下是我的一些示例行mail.log：
Feb 20 02:40:41 servername postfix/smtp[14580]: 4E30B1100C7: host aspmx.l.google.com[209.85.211.78] said: 421-4.7.0 [174.143.183.26] Our system has detected an unusual amount of 421-4.7.0 unsolicited mail originating from your IP address. To protect our 421-4.7.0 users from spam, mail sent from your IP address has been temporarily 421-4.7.0 blocked. Please visit http://www.google.com/mail/help/bulk_mail.html 421 4.7.0 to review our Bulk Email Senders Guidelines. 10si1216690ywh.92 (in reply to end of DATA command)
Feb 20 12:49:22 servername postfix/smtp[5651]: A86CB1CC0CF: to=<user@domain.com>, relay=mx3.comcast.net[76.96.58.14]:25, delay=55186, delays=55185/0.01/0.93/0, dsn=4.0.0, status=deferred (host mx3.comcast.net[76.96.58.14] refused to talk to me: 554 imta36.westchester.pa.mail.comcast.net comcast 174.143.206.168 found on one or more DNSBLs, see http://help.comcast.net/content/faq/BL000001)
Feb 16 10:50:11 servername postfix/smtp[6931]: 98B94380A1: host mx-in-2.webreus.nl[212.61.252.240] refused to talk to me: 554-mx-in-2.webreus.nl 554-Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means. 554 More information can be found on http://senderbase.org/senderbase_queries/detailhost?search_string=174.143.206.168
Feb 16 10:50:12 servername postfix/smtp[6931]: 98B94380A1: to=<user@domain.com>, relay=mx-in-1.webreus.nl[212.61.10.240]:25, delay=173653, delays=173650/0.22/2.8/0, dsn=4.0.0, status=deferred (host mx-in-1.webreus.nl[212.61.10.240] refused to talk to me: 554-mx-in-1.webreus.nl 554-Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means. 554 More information can be found on http://senderbase.org/senderbase_queries/detailhost?search_string=174.143.206.168)
我为改善这种情况而采取的步骤：
我的服务器在 Rackspace 的云中。是否有可能 IP 地址的不良声誉是从以前的客户那里继承而来的？以上一些步骤已经在过去一周采取了——我是否必须等待情况好转？还有其他我应该做的事情吗？我应该聘请第三方为我发送电子邮件吗？
And*_*ndy 33
不幸的是，无论 IP 背后的硬件如何，IP 都被列入黑名单，因此除了确保正确发送邮件并联系相关垃圾邮件列表之外，您对现有声誉无能为力。您可能需要等待几天或几周才能改善情况。
我建议使用 Google Apps for SMTP 来消除这些问题:)
否则，如果您继续自己操作，请检查：
http://status.slicehost.com/2009/11/11/email-issues-spamhaus-pbl
我和那些人有一个 VPS。
显然，Rackspace 预先列出了他们的一堆 IP，但是您可以通过 spamhaus 的列表（至少）逐个 IP 请求删除该块。
一旦我注意到 gmail 拒绝递送，我就不得不与我的主人一起做这件事。在我请求删除 24 小时后，gmail 已更新，一切顺利。
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