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# Fail2Ban filter for exim the spam rejection messages
#
# Honeypot traps are very useful for fighting spam. You just activate an email
# address on your domain that you do not intend to use at all, and that normal
# people do not risk to try for contacting you. It may be something that
# spammers often test. You can also hide the address on a web page to be picked
# by spam spiders. Or simply parse your mail logs for an invalid address
# already being frequently targeted by spammers. Enable the address and
# redirect it to the blackhole. In Exim's alias file, you would add the
# following line (assuming the address is honeypot@yourdomain.com):
#
# honeypot: :blackhole:
#
# For the SA: Action: silently tossed message... to be logged exim's SAdevnull option needs to be used.
#
# To this filter use the jail.local should contain in the right jail:
#
# filter = exim-spam[honeypot=honeypot@yourdomain.com]
#
[INCLUDES]
# Read common prefixes. If any customizations available -- read them from
# exim-common.local
before = exim-common.conf
[Definition]
failregex = ^%(pid)s \S+ F=(<>|\S+@\S+) %(host_info)srejected by local_scan\(\): .{0,256}$
^%(pid)s %(host_info)sF=(<>|[^@]+@\S+) rejected RCPT [^@]+@\S+: .*dnsbl.*\s*$
^%(pid)s \S+ %(host_info)sF=(<>|[^@]+@\S+) rejected after DATA: This message contains a virus \(\S+\)\.\s*$
^%(pid)s \S+ SA: Action: flagged as Spam but accepted: score=\d+\.\d+ required=\d+\.\d+ \(scanned in \d+/\d+ secs \| Message-Id: \S+\)\. From \S+ \(host=\S+ \[<HOST>\]\) for <honeypot>$
^%(pid)s \S+ SA: Action: silently tossed message: score=\d+\.\d+ required=\d+\.\d+ trigger=\d+\.\d+ \(scanned in \d+/\d+ secs \| Message-Id: \S+\)\. From \S+ \(host=(\S+ )?\[<HOST>\]\) for \S+$
ignoreregex =
[Init]
# Option: honeypot
# Notes.: honeypot is an email address that isn't published anywhere that a
# legitimate email sender would send email too.
# Values: email address
honeypot = trap@example.com
# DEV Notes:
# The %(host_info) defination contains a <HOST> match
#
# Author: Cyril Jaquier
# Daniel Black (rewrote with strong regexs)