SpamCleanUp for Exchange 2000/2003 application can delete the expired messages from any specified folder in each user's mailbox. You set the number of days you want the messages available, and after that, they are gone.
Alternatively the messages from user's personal folders can be moved to a special central mailbox for checking later.
Built-in scheduler option is useful for deleting/moving messages overnight.
In particular, this program might be useful for cleaning up the Spam or Junk mail folders of Exchange users to make them more manageable.
Application is an Exchange sysytem event sink.

Benefits

• SpamCleanUp allows the Exchange administrator to automate a significant part of the message management process for all users at once
• SpamCleanUp can work for multiple Exchange server mailbox stores
• The application is server-centric, so you do not need to install any extra software on the client side