I think you'll find it is quite common! It never ceases to amaze me that many mail 'admins' have never seen what a mail server actually handles on a day to day basis when the get away from a 'point and click' mail server.
Originally Posted by Solt
Look thru the logs and you can learn a lot more.
8.0.3 UBUNTU10_04 UBUNTU10_04 NETWORK
8.0.3 UBUNTU10_04 UBUNTU10_04 FOSS