Randolph One of the most annoying things in Outlook over the years has been duplicate emails, usually as a result of merging PST files. I've been using Outlook since 1997, so there was a fair number of duplicates.
Until yesterday.
MAPILab's Duplicate Email Remover took only an hour to locate and flag all of my duplicates. I could have set it to remove them automatically, but I wanted to check that it was working properly.
It cost $15.00 and was worth every cent. 60% of my entire email archive was comprised of duplicates. Now I only have 55 000 emails from 1997 – 2004 (the more recent stuff was not as severe). I highly recommend this product.