The BES contains the phone call log as part of the wireless backup, but no emails or PIM data. If you reactivate the user without removing him he will get the phone call logs but emails will not pre-populate unless the BES sees a new device/user.
There is a reg hack for this, it's on here somewhere. If you search for pre-population you should find it.
Sounds weird that he would lose the data unless he has severe memory loss on the Pearl.
|