M365 Service Health Notification

Exchange Online service alert Incident information Title: All users may be unable to access their mailbox via Outlook on the web ID: EX216917 Status Service Restored Details Title: All users may be unable to access their mailbox via Outlook on the web User Impact: Users may have been unable to access their mailbox via Outlook on the web. More info: We recommended users who had access to the Outlook desktop client use that protocol as an alternative method to access their mailboxes. Final status: Following the revert of our recent service update, we've confirmed that impact has been remediated. Scope of impact: This issue may have potentially affected any of your users attempting to access their mailbox via Outlook on the web. Start time: Sunday, June 21, 2020, at 8:22 PM UTC End time: Monday, June 22, 2020, at 5:00 AM UTC Root cause: A recent service update was unexpectedly causing access issues for Outlook on the web. Next steps: - We're reviewing our update procedures to better understand why this update resulted in impact, and to identify similar issues during our development and testing cycles. This is the final update for the event. Thank you, The Microsoft team To customize what's included in this email, who gets it, or to unsubscribe, set your Service health preferences. If you are receiving this email because your Admin added you as a recipient, please contact your Admin to unsubscribe. Microsoft respects your privacy. Review our online Privacy Statement. Microsoft Corporation One Microsoft Way Redmond, WA USA 98052