Posted on: November 13, 2026
A Microsoft 365 service disruption may prevent some users from opening their Outlook mailbox on the web, desktop, or mobile. Email delivery may also be delayed.
In Microsoft Teams, calendar access, meeting scheduling, invitations, and event creation may be affected. Users can still join calls and meetings, use group chats, and post in standard channels.
Some users may also have trouble opening Copilot Chat, viewing recent files in Microsoft 365 apps, including using SharePoint files externally. Files stored in SharePoint remain accessible.
More details are available from Microsoft at Microsoft service health status
Updated Nov 13th, 2026 9:00am
