I recently migrated one of my corporate clients from hosted Exchange mail on Intermedia.net over to Google Apps for Business. I used the Google Apps Sync for Microsoft Outlook tool as well as their Google Apps Migration for Microsoft Outlook tool to create a new Outlook profile for each user and copy their emails over. However, some of the users do not have all their emails in Outlook. If they log into their original Outlook profile, they can see all their emails, but not when logged into the new Google Apps profile.
I'm not sure what went wrong in the migration process to cause this to happen, but I think the best thing for me to do now is to merge the contents of the user's original Outlook profile with the new Google Apps profile. That way the user's entire history of emails will be available to them without having to switch profiles.
How do I merge the two profiles without creating unnecessary duplication of emails? Keep in mind that the users have many thousands of emails in their original profiles. Every user is on Outlook 2007, except for one using Outlook 2010.
Thanks in advance.