ISMail EP Anti-spam Filter Plugin

The ISMail EP Anti-Spam Filter plugin packages SpamAssassin as an anti-spam server for ISMail EP (the `spamd` server). This filter may be used for the entire Mail Server, or enabled for specific mail domains using the ISMail EP `Heuristic` filter setting. A Bayseian database self-learns ham and spam; approximately 200 `hammy` and `spammy` messages are required for this filter to be used. In order to be most effective, only messages scoring very low are classified as `hammy` and those scoring high as `spammy` in the self-learner. Standard SpamAssassin local settings may be configured in the file:../ismail/sa/perl/site/5.8.8/etc/mail/spamassassin/local.cf The plugin requires that Webmail first be installed, although it is not necessary to run the Webmail server.