HOWTO fail2ban with qpopper

Configuration for qpopper pop3 daemon is done through the following: (this setup was for openSUSE 10.2)

First make an entry into your jail.conf file.

[qpopper]
enabled  = true
port     = pop3
filter   = qpopperlogin
action   = iptables[name=%(__name__)s, port=%(port)s]
           sendmail-whois[name=qpopper, dest=you@mail.com]
logpath  = /var/log/mail
maxretry = 5</nowiki>

Then create a file in action.d directory called qpopperlogin.conf

(this failregex statement was sent to the fail2safe mail list by Sven Neukirchner.

[Definition]

failregex = popper\[[0-9]+\]: \[AUTH\] Failed attempted login to \S+ from host (\S+) <HOST>(?: \[pop_pass\.c.*\])?$

ignoreregex =