Author Topic: zen.spamhaus.org or postfix or control web panel  (Read 199 times)

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zen.spamhaus.org or postfix or control web panel
« on: August 19, 2022, 01:16:32 PM »
Few days ago I noticed a plenty of email messages denied by system in /var/log/maillog, system gone wild.
Zen spamhaus  org in combination with postfix configuration marked some incoming email servers as blacklisted servers, some of them weren't on spamhaus list at all.

I tested some IP addresses there:
https://check.spamhaus.org/

Configuration of postfix main.cf wasn't changed for months.
Maybe anyone have more info about that problem? Is it spamhaus error/bug with false positive reporting or is there anything with the current system?


Example:
Code: [Select]
Aug 18 14:47:46 srv postfix/smtpd[32701]: NOQUEUE: reject: RCPT from example.mailserver.com[xxx.xxx.xxx.xxx]: 554 5.7.1 Service unavailable; Client host [xxx.xxx.xxx.xxx] blocked using zen.spamhaus.org; from=<some.user@exampleserver.com> to=<someuser@exampleserver.com> proto=ESMTP helo=<example.mailserver.com>

Thank you,
BR.
« Last Edit: August 19, 2022, 01:30:23 PM by idovecer »