Marc Lalancette,
In the
Advanced version of the utility, this option allows you to select fields for compare.
In the OutlookFreeware.com version it uses predefined fields such as Subject, Message Text, Sender, Recipients and Attachments. With this option disabled the utility tries to compare messageID if available.
So, it it better to run the utility with this option disabled first. If you still can see duplicates then enable this option and run utility again. The program can find additional duplicates.
Advanced version allows to select fields. This allows to find duplicates in more complex situations.
We are trying to make OutlookFreeware.com utilities more automate and easier to use by remove redundant options. But make advanced versions to solve any complex issues. We constantly add new video tutorials to out utilities for both
OutlookFreware.com videos and
advanced versions videos.