We are using SBS 2000 for our Exchange server, and W2K Pro on our workstations. After many small changes to the Exchange settings to access POP3 mailboxes, my incoming mail is now disappearing a few minutes after I receive it. If I put the mail in personal folders, it is safe, but if I leave it in the In-box it disappears soon afterward. Is there some setting that I could have changed that clears my In-box after a 10 to 20 minute interval??