you need a utility. See
http://www.slipstick.com/addins/mail_duplicates.asp
--
Diane Poremsky [MVP - Outlook]
Outlook Tips:
http://www.outlook-tips.net/
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Let's Really Fix Outlook 2010
http://forums.slipstick.com/forumdisplay.php?f=34
"trikepapa" <(E-Mail Removed)> wrote in message
news:B5CF0DE3-AD80-4E51-9A85-(E-Mail Removed)...
> How do I identify and Cleanup Duplicate Email Messages in my INBOX?