When I access my Outlook Web Access mailbox, all seems fine. If I try to move or delete a message I get the following alert:
"Some items can't be deleted. They were either moved, already deleted, or access was denied."
I am an exchange administrator so permissions should not be a problem. I have recently changed the OWA to use HTTPS and have installed RDP over HTTP network service on the server recently recently. These are the only changes made recently, except for the usual MS security type updates.
Any ideas would be useful. My Outlook access to the mailbox remains perfect.