Outlook Mailbox Access Issues (Jan. 12, 2022)
On January 12, 2022, at ~01:49 am UTC, Microsoft communicated via tweet (@MSFT365status) that they were investigating an issue in which users in the UAE were experiencing mailbox access issues.
For IT professionals and system admins with Microsoft admin center access, Microsoft provided three issue #'s: EX313705, EX313731 and MO313750.