| Server IP : 94.16.115.136 / Your IP : 216.73.217.106 Web Server : Apache/2.4.52 (Ubuntu) System : Linux rogerrabbit 5.15.0-185-generic #195-Ubuntu SMP Fri Jun 19 17:11:50 UTC 2026 x86_64 User : bkillingseder ( 1001) PHP Version : 8.1.2-1ubuntu2.25 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /etc/fail2ban/filter.d/ |
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# Fail2Ban filter to block relay attempts though a Courier smtp server
#
#
[INCLUDES]
# Read common prefixes. If any customizations available -- read them from
# common.local
before = common.conf
[Definition]
_daemon = courieresmtpd
prefregex = ^%(__prefix_line)serror,relay=<HOST>,(?:port=\d+,)?<F-CONTENT>.+</F-CONTENT>$
failregex = ^[^:]*: 550 User (<.*> )?unknown\.?$
^msg="535 Authentication failed\.",cmd:( AUTH \S+)?( [0-9a-zA-Z\+/=]+)?(?: \S+)$
ignoreregex =
# Author: Cyril Jaquier