On Wed, 2010-05-26 at 09:56 +0200, Florian Effenberger wrote: > > rm -f /path/to/Maildir/.spam-learn/*
Oh, I really ment .spam-learn/cur/* (and maybe .spam-learn/new/* if you make it learn from both and it doesn't move mails to cur/). > Can I simply delete the files, don't I destroy any indices or slow > down Dovecot operation because of index rebuilding? Keep Dovecot's index files around so that they won't get deleted while Dovecot is trying to read/write them. You won't slow down anything by manually deleting maildir files.