[Feature Request] ability to clear Bayes cache

[felixlabrot]

Hello,

I have the problem that the Bayes filter has trained itself to classify Veeam Backup mails as spam. Due to RocksDB being impossible to administer and get rid of the wrong training data, I would like to see a "Clear Bayes Cache" button in the web interface which removes the entire training data. Or a way to delete training data based on IP or domain (if that is even possible to do).

Also I see the need of adding documentation to the "Train Spam Filter" functionality.

[mdecimus]

Migrated to stalwartlabs/mail-server#947