I have a stange one. After I enabled Message tracking logs, I cannot get Delivery reports from OWA.
If i try to get delivery report from a mail in outlook 2010 i get this error "Delivery report information for this message isn't available"
Exchange 2010 SP1
Has anyone had this before?
When you try OWA to get Delivery report, what error did you get?
Please follow this thread and have a try: