# 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/smtpd failregex = ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[\]: 554 5\.7\.1 .*$ ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[\]: 450 4\.7\.1 : Helo command rejected: Host not found; from=<> to=<> proto=ESMTP helo= *$ ^%(__prefix_line)sNOQUEUE: reject: VRFY from \S+\[\]: 550 5\.1\.1 .*$ ^%(__prefix_line)simproper command pipelining after \S+ from [^[]*\[\]:?$ ignoreregex = [Init] journalmatch = _SYSTEMD_UNIT=postfix.service # Author: Cyril Jaquier