On November 12, 2026, Microsoft 365 faced a significant outage that disrupted access to email and workplace applications, including Outlook and Teams. Downdetector reported nearly 130,000 issues related to Outlook alone. Microsoft acknowledged problems with its Exchange Online service and is actively working to restore access by restarting affected servers and considering reversing recent configuration updates. The outage may impact users across various regions.
Key facts
- Microsoft 365 outage reported on November 12, 2026.
- Nearly 130,000 reports of Outlook issues were recorded.
- Microsoft acknowledged problems with Exchange Online around 1 p.m. ET.
- The company is considering reversing recent configuration updates.
- Service restoration efforts included pausing deployments and redirecting traffic.
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