[SOLVED] Banned IP information


Well-Known Member
Mar 14, 2017

Is it possible to have a function that informs the administrator if an email is "bounced" due to banned IP?

An example to better understand the demand.

status=bounced (host positivecoating-ch.mail.protection.outlook.com[] said: 550 5.7.606 Access denied, banned sending IP [AAA.BBB.CCC.DDD]. To request removal from this list please visit https://sender.office.com/ and follow the directions. For more information please go to http://go.microsoft.com/fwlink/?LinkID=526655 (AS16012609) (in reply to RCPT TO command))

If such a message passes from the Syslog/Tracking center have a return by email.
So it allows the admin to do the necessary things.

Thank you very much.
Those bounce messages do not have a particular format and contain free text, thus making it difficult to get only the desired ones.

You can configure postfix to drop you(postmaster for the domain) a mail for each bounced mail - but this usually contains far too many mails to be an actual help - see http://www.postfix.org/postconf.5.html#notify_classes for details.

Alternatively you can take a look at fail2ban - which is AFAIR a rather nice and generic framework, parsing logs and setting actions (usually blocking via firewall, but you could probably use it as well to send you an email when a logline matches a regular expression)

Hope this helps!

That's right, yes! I hadn't thought about using Fail2ban !
Thank you so much.



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