Hi, I'm trying to inform mail users about "maildir over quota". Unfortunately, I do not know how to do it. Quota is working well and I have information in log file: status=deferred (temporary failure. Command output: ERR: authdaemon: s_connect() failed: Permission denied maildrop: maildir over quota. ) I have 3.0.4.6 ISPConfig version. I've added to postfix: Code: notify_classes = bounce,delay,policy,protocol,resource,software bounce_notice_recipient = [email protected] But this doesn't solve my problem. Best regards woy-s