Outlook - Purge IMAP items marked for deletion
No, this isnít about a purge on Purge on Microsoft Outlook (although thatís not a bad idea!). This is about clearing all those items in your Inbox when you use IMAP that you thought were gone, but are actually still there because you havenít purged. Please read this page on the Microsoft website which will tell you how to achieve this:
Purge IMAP items marked for deletion. The article includes instructions on the following, using Microsoft Office Outlook 2007:
Here is an article in About.com that explains how to Purge Deleted Messages in Outlook 2003.