Microsoft 365 outage
Outlook, Teams and Copilot disrupted worldwide
What happened?
Since Thursday evening, 12 November, Microsoft 365 has been disrupted worldwide. Mainly services based on Exchange Online are affected: emails in Outlook partly cannot be retrieved or sent, calendars and Teams fail at times, and Copilot is partly unavailable to business customers.
Microsoft names a core process on the affected servers as the cause: it becomes overloaded, which reduces capacity. Microsoft is restarting servers step by step, rerouting traffic and has reported partial recovery in some regions since early Friday morning. It is still unclear when the disruption will be fully resolved.
Administrators can find details in the Microsoft 365 admin center under incident numbers EX1550543 and MO1550821.
You can follow the current status at Microsoft 365 Status (@MSFT365Status) (opens in a new tab) and allestörungen.de (opens in a new tab).
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