I have one particular AD user, nothing really special about them that I'm aware of, that I'm unable to delete. The error is the "You do not have sufficient privileges to delete..." with the CN data which oddly has something about iPad App and ExchangeActiveSyncDevices in it and then "...or this object is protected from accidental deletion."
The accidental deletion protection option is off. I can't delete it from an account escalated to administrator nor from a full administrator login. This is not the only person with an iPad that has synced to our Exchange server. Is that a real clue or is it a misleading error? What else could be blocking deletion?