I had the clamav quota problem with the mailusers. I solved this with the switch to clamd. But the mail users are still near to there max on quota. When I delete an account and make a new one everything works fine and quota stays normal. Is there a way how to clean the Maildir of a user without having to delete and create the account again. The clamav problem had something to do with the tmp files. Can they be cleaned with a command for example? I tried a reboot but that did not work for the users.