Incoming Status: Failure – The remote Microsoft Exchange e-mail server returned the error “(401) Unauthorized”. Verify that you have permission to connect to the mailbox. The request failed with HTTP status 401: Unauthorized.

SYMTOM:  You are receiving following error when configuring Incoming Profile on email router with O365. Incoming Status: Failure – The remote Microsoft Exchange e-mail server returned the error “(401) Unauthorized”. Verify that you have permission to connect to the mailbox. The request failed with HTTP status 401: Unauthorized.   CAUSE:  + Full access right missing for […]