| Server IP : 216.92.14.13 / Your IP : 216.73.216.171 Web Server : Apache System : Linux vps4089.pairvps.com 5.15.0-190-generic #200-Ubuntu SMP Fri Aug 7 15:06:04 UTC 2026 x86_64 User : rmlac2fmr ( 1040637) PHP Version : 8.2.32 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /etc/fail2ban/filter.d/ |
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# Fail2Ban filter for postfix authentication failures
#
[INCLUDES]
before = common.conf
[Definition]
_daemon = postfix/smtpd
failregex = ^%(__prefix_line)swarning: [-._\w]+\[<HOST>\]: SASL (?:LOGIN|PLAIN|(?:CRAM|DIGEST)-MD5) authentication failed(: [ A-Za-z0-9+/]*={0,2})?\s*$
# Author: Yaroslav Halchenko