Hello, Some of my clients get this mesagge: " Warning! Your mailbox quota was exceeded. All messages to your address will be rejected. Please, free space in the mailbox or contact server administrator. This message is automatically generated, please do not reply to it." I checked limits - it's ok, more than 20MB aviable. When I restared my server, this problem has been solved, and clients again, get email's, but agter 2-3 this problem repeted. PS.: sorry for mistakes.