MAILFILTER(1) - Linux man page online | User commands

Filters e-mail, gets rid of spam.

January 2009


mailfilter - Filters e-mail, gets rid of spam


mailfilter [OPTION]...


Mailfilter is a very flexible utility to get rid of unwanted spam mails, before having to go through the trouble of downloading them into the local computer. It offers support for one or many POP accounts and is especially useful for dialup connections via modem, ISDN, etc. Mailfilter connects to any POP mail box and compares part of its content to a set of user defined filter rules. That way the spam gets deleted directly on the mail server. With Mailfilter you can define your own filters (rules) to determine which e-mails should be delivered and which are considered waste. Rules are Regular Expressions, so you can make use of familiar options from other mail delivery programs such as procmail(1) for example.


The mailfilter program normally returns 0 but -1 if an error occurs. However, if it has been invoked with the return-value command line switch, it gives back a positive integer in case there are messages on the POP server. Empty POP accounts would then result in a return value of 0. Using the switch, mailfilter can be embedded into a shell script more easily.


The behaviour of Mailfilter is controlled by command-line options and a configuration file. The program will not start without it. Example configurations can be looked up in the mailfilterex(5) man page, in the INSTALL document or inside the doc/ directory of the Mailfilter distribution. By default Mailfilter tries to read $HOME/.mailfilterrc to get all its settings from. This is the place where all changes should be made, unless it is explicitly specified other‐ wise. A comprehensive list of all supported options and keywords can be found in the mail‐ filterrc(5) man page.


-h, --help Display help information -L, --logfile=FILE Specify logfile location -M, --mailfilterrc=FILE Specify rcfile location -r, --return-value Enable additional return values -t, --test Simulate deletes -i, --ignore-time-stamps Ignore invalid Message-ID time stamps (Do not use unless you know better!) -v, --verbose=LEVEL Specify level of verbosity -V, --version Display version information


mailfilterrc(5), mailfilterex(5), procmail(1), regex(7)
Copyright © 2000-2014 Andreas Bauer <> This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Mailfilter January 2009 MAILFILTER(1)
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mailfilter(1) referred by mailfilterex(5) | mailfilterrc(5)
refer to mailfilterex(5) | mailfilterrc(5) | procmail(1) | regex(7)
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