"Thomas M." wrote in message
...

To troubleshoot this problem I created a custom view with the Do Not
AutoArchive and the Modified fields. None of the items in my Inbox have the
Do Not AutoArchive flag set, so that isn't the problem. However, I did
notice that the Modified date for about 350 items shows 7/1/09 9:06 AM.
That's odd because the vast majority of those items have not been touched
since they were originally received. I am wondering if something happened
on that date to reset the Last Modified date for all those items.

Third party add-ins that integrate with Outlook can alter the modified date.
Do you have any?
--
Brian Tillman [MVP-Outlook]