Its unity 3.1. Today suddenly user got the fail safe message. Unity did not log any events in the event viewer. I double checked that. Now how do i proceed. I tried deleting that user successfully and recreatng his mail box. It worked for a while only..maybe 8-9 hrs. After that he gets the same message that system cannot process his request.....Please reply ASAP.
I ran a query on the forum for the 0x8004000c error. Other folks have seen this before and it seems in some cases it seems to be related to moving mailboxes around. For eg check this link -