[Evolution] Bogofilter junk plugin

[Mikhail Zabaluev <mhz altlinux org>]

Hello,

I'm excited to present an Eclipse junk plugin that makes use of the
Bogofilter utility:

http://people.altlinux.ru/~mhz/software/projects/bf-eplugin/bf-eplugin-0.1.0.tar.gz

Bogofilter is a fast and nimble mail filter that utilises a so-called
Bayesian technique to classify junk and non-junk mail. The plugin was
created as a better alternative to the default SpamAssassin junk plugin,
which the author felt is sluggish, uses too much memory, and isn't
really doing a good job at filtering spam (it may be, however, that I
simply suck at configuring SpamAssassin to suit my needs).

The Win32 platform is not supported for now.

CAVEATS:

As of Evolution 2.4.0, the definition file for the stock junk filter
plugin, 'org-gnome-sa-junk-plugin.eplug', must be removed from the
plugin directory to avoid conflict with any alternate junk plugin.
Simply disabling the SA plugin in the configuration UI won't avail. This
is due to a flaw in the loading code for this hook type (see GNOME bug
#313096).

To be able to classify mails as spam, bogofilter needs to have some
messages in its ham (non-spam) wordlist. This presents something of a
chicken-and-egg problem for Evolution, because it can feed messages
to the junk filter for learning as non-junk only after these messages
have been classified as junk and moved into a junk folder. Thus, if you
haven't got a pre-existing bogofilter database, you may need to feed it
some messages known to be non-junk, using its command line utility:

bogofilter -n < saved-ham-message

Enjoy.