Microsoft Reports Widespread Outlook Outages in United States
Microsoft said it was working to reduce the impact after outage reports for Outlook and Microsoft 365 topped 128,000, according to Downdetector.
- On Thursday, thousands of users reported errors with Microsoft Outlook and CoPilot, as outage tracker Downdetector recorded a spike in reports beginning just after 11 a.m.
- Downdetector data showed 22,323 users reporting outages by 11:55 a.m., while maps indicated Mississippi users reported the most problems using Outlook and CoPilot.
- Microsoft said, "We've begun redistributing connection traffic across our broader worldwide infrastructure to help balance the load," as the company worked to mitigate outage impact.
- Beyond Outlook, the company investigated reports of users experiencing issues accessing Exchange Online mailboxes in the Americas and posted about "issues when accessing or using Microsoft Teams functionality in North America."
- Microsoft continued pausing all deployments and restarting affected servers to return them to service, though outages persisted just before 1 p.m.
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Companies, authorities and even secret services are affected by the failures. Microsoft has been struggling with the disruption for more than ten hours and is looking for additional server capacities.
There has been a global breakdown in Outlook messaging since Thursday, November 12, 2026. Disruptions continue this Friday due to the lack of an effective Microsoft solution.
The breakdown, disrupting the communications of many public services, has affected Microsoft products in 74 countries and territories, reports the Downdetector fault tracking site. The US company says it is working "unrelentingly" to resolve the situation Tens of thousands of users are not found deprived of access to their emails on Thursday due to a major failure of Microsoft Outlook messaging.
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