The initial version of my extension JunQuilla, which provides improved information for training the junkmail filter, is now available here. JunQuilla gives you more information about the junk (aka spam) status of each email (its percentage match in the statistical calculations, and reasons why a message was marked junk or good). Also, an Uncertain folder of messages needing training is added.
See http://mesquilla.com/extensions/junquilla for details.
Junquilla looks great, already saving me time handling the spam. But – number of issues etc, can you enable the forum so it can be discussed.
The forum is working on all the computers that I have tested. Can you try it again?