Duplicate Email Remover is a powerful and flexible tool intended for the search and processing of duplicated mail messages in Microsoft Outlook folders. DER processes both email messages and posts in mail-type Microsoft Outlook folders.
The Priority system within the add-in is used to search for duplicates across several folders. Using the priority system, you can specify, for example, that of the two identical messages stored in the folders "Important Letters" and "Temporary Folder", it is the message from the temporary folder that should be considered the duplicate and hence needs to be deleted (marked, moved).
Duplicate Email Remover is fully compatible with Microsoft Exchange Server and may be used to process public folders on a server. Also, if you have permission to connect to mailboxes of other users, you can process mailboxes of other users as well as that of your own mailbox.