I currently have ~350 users, and have an issue with only one users when she tries to call into Unity to retreive her messages.
It basicaly tells her that her mailbox is unavailable and to try back later. I have tried deleting and adding it back. But as soon as she sets up her initial greeting, it goes back to the error.
The application error log displays this message each time she tries to connect:
An unexpected error has occured while a subscriber is on the phone with Unity. This can potentially result in the subscriber hearing the failsafe conversation. Technical details are - IAvDohMailUser::get_Inbox returned [0x8004000c] on line 1359 of file E:\Views\CU18.104.22.168\un_Conv1\Scripted\ConvSub\MsgCount.cpp.
I have checked to make sure our Unity service has rights to her mailbox, and that Unity mailbox alias matches her Exchange mailbox alias. All seems to look ok, and like all the working users, but still no go.
Has anyone else had this issue before?