Rated 3 out of 5 stars

The idea of this plugin is great. Automatic classification of mails instead of creating filter by filter - or to live with the mess in the inbox.

But after several days (even weeks?) of training the rating still feels as if being made by random. Mails either don't get categorized or get categorized wrongly.

Missing features:
* Give a chance to reset the database.
* Give access to learning statistics (some look into the inside)
* "Unlearn" a mail: Currently you can only set a new category for a mail which has been placed into the wrong category. But if you just want to delete the category, there is no chance.

I will watch the updates... perhaps this plugin gets better. Meanwhile I will switch back to creating filters manually. It's much more robust although I still hate the filter management of Thunderbird.

This review is for a previous version of the add-on (1.0).