Service was fully restored around 11AM Eastern with no further issues reported by our partners
Update 03/19/2020 14:15 PM 1 days
We are actively working to resolve intermittent access issues to 2016 mailboxes. Mobile phones seem to be the least impacted, followed by Outlook and then OWA. We anticipate all connections stabilizing by 11AM Eastern but customers should see performance increases as we update throttling policies.