As indicated in the release announcement of Pigeonhole v0.3.0, there is also a new experimental plugin available for Pigeonhole v0.3: the sieve_extprograms plugin. This can be used to pipe messages to and filter messages through external programs (shell scripts). Also, string data can be retrieved from such external programs. The plugin can currently only be obtained from its Mercurial repository:

http://hg.rename-it.nl/pigeonhole-0.3-sieve-extprograms

Refer to the INSTALL and README files for more information:

http://hg.rename-it.nl/pigeonhole-0.3-sieve-extprograms/raw-file/tip/INSTALL http://hg.rename-it.nl/pigeonhole-0.3-sieve-extprograms/raw-file/tip/README

The vendor-specific Sieve language extension provided by this plugin are documented here:

http://hg.rename-it.nl/pigeonhole-0.3-sieve-extprograms/raw-file/tip/doc/rfc...

Please test this plugin. The plan is to include it into the main Pigeonhole release eventually.

Regards,

Stephan.