|
Keeping the learned spam messages under a year old is actually an excellent approach. It should be quite sufficient to tune your personal Bayes database (should it ever need to be reset) and using the advanced preferences for a folder, you can set an auto purge limit of 365 days. Note that (although I doubt it will be that important) if you do decide a particular message is important to keep, you can pin the message to prevent auto purge from discarding it.
|