Hi, please give me a hint what i could try to solve my following problem: Over night all Websites are over Quota - and no Mails were accepted anymore. As workaround i gave all Clients Tons of quota. The Mails can be accepted now. But none of the Website was really over the quota, for example: The Mail from ISPConfig says: Group: web27 Used Storage Space: 317.23 MB Allocated Storage Space: 250.00 MB This does'nt accept mails, the error is: imapd-ssl: Failed to create cache file: maildir_lock (xxx) imapd-ssl: Error: Disk quota exceeded A manual du -hs as root gives: 149MB As admispconfig the du command returns 76MB AS this is a serious Problem and many Cleints are abused, i urge for help on this problem! T.I.A.