Exim

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Exim is a mail transfer agent (MTA) used on Unix-like operating systems. The first version was written in 1995 by Philip Hazel for use in the University of Cambridge Computing Service's e-mail systems. There is currently a port of Exim to Microsoft Windows using the Cygwin emulation layer.

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Contents

PLAIN authentication errors

On CentOS 5 the debug file is /var/log/exim/main.log.

2010-10-03 16:50:37 PLAIN authenticator failed for (test) [192.0.2.1]: 535 Incorrect authentication data (set_id=test@test.net)


Failregex

The regular expressions below are proposed failregex for this software. Multiple regular expressions for failregex will only work with a version of Fail2ban greater than or equal to 0.7.6.

The tag <HOST> in the regular expressions below is just an alias for (?:::f{4,6}:)?(?P<host>\S+). The replacement is done automatically by Fail2ban when adding the regular expression. At the moment, exactly one named group host or <HOST> tag must be present in each regular expression.

Please, before editing this section, propose your changes in the discussion page first.

PLAIN authentication errors

\[<HOST>\]: 535 Incorrect authentication data

Delivery errors

  • \[<HOST>\] .*(?:rejected by local_scan|Unrouteable address)
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