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| # Fail2Ban filter for selected Postfix SMTP rejections | |
| # | |
| # | |
| [INCLUDES] | |
| # Read common prefixes. If any customizations available -- read them from | |
| # common.local | |
| before = common.conf | |
| [Definition] | |
| _daemon = postfix/(submission/)?smtp(d|s) | |
| failregex = ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[<HOST>\]: 554 5\.7\.1 .*$ | |
| ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[<HOST>\]: 450 4\.7\.1 Client host rejected: cannot find your hostname, (\[\S*\]); from=<\S*> to=<\S+> proto=ESMTP helo=<\S*>$ | |
| ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[<HOST>\]: 450 4\.7\.1 : Helo command rejected: Host not found; from=<> to=<> proto=ESMTP helo= *$ | |
| ^%(__prefix_line)sNOQUEUE: reject: VRFY from \S+\[<HOST>\]: 550 5\.1\.1 .*$ | |
| ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[<HOST>\]: 450 4\.1\.8 <\S*>: Sender address rejected: Domain not found; from=<\S*> to=<\S+> proto=ESMTP helo=<\S*>$ | |
| ^%(__prefix_line)simproper command pipelining after \S+ from [^[]*\[<HOST>\]:?$ | |
| ignoreregex = | |
| [Init] | |
| journalmatch = _SYSTEMD_UNIT=postfix.service | |
| # Author: Cyril Jaquier |