Microsoft 365 Global Outage Officially Closed: Status Page Shows All Services Operational

• Dispatched: Nov 14, 2026 · 03:46 ET (08:46 UTC)

One-sentence summary: Microsoft's global Microsoft 365 outage, which began on November 12, 2026 and disrupted services for about 30 hours, is officially closed: Microsoft's public Service Health page confirmed at 2026-11-14 03:40 ET / 08:40 UTC that all products are operational, the business incident entry has been cleared, and the consumer incident is marked "Service restored" with a final update confirming full recovery and a cleared email backlog.

Verification status: ✓ Official first-hand disclosure (Microsoft Service Health status page, verified live)

Core Facts & Consensus Delta:

The outage began at 2026-11-12 11:17 ET / 16:17 UTC, tracked by Microsoft as EX1550543 (Exchange Online) and MO1550821 (multiple Microsoft 365 services), affecting 14 services including Outlook, Teams and Copilot; third-party monitoring showed US user reports for Outlook peaking above 130,000. Microsoft has confirmed the root cause was a technical issue introduced during an earlier network capacity upgrade that surfaced after a more recent network change, unrelated to cyber activity or AI agents, and that the underlying issue has been fixed. The consumer incident's final update confirms services across the previously affected environments have fully recovered and the email backlog has been processed; the incident ran from 2026-11-12 05:05 ET / 10:05 UTC to 2026-11-13 11:10 ET / 16:10 UTC, about 30 hours. The business incident has been cleared from the public status page, which now shows all products operational. A full post-incident report has not yet been published.

Supply-Chain & Market Read-Through: Microsoft 365 is the core productivity suite for enterprises worldwide; formal closure removes the operational uncertainty for corporate customers and confirms no lasting infrastructure damage. The confirmed non-cyber root cause closes the security-incident narrative. Delivery provider SparkPost said some messages with short expiration settings may have expired and bounced during the disruption, so a small tail of undelivered mail may remain. Attention now turns to the post-incident report for root-cause detail and any service-credit or service-level-agreement implications.

Next Catalysts & Watchpoints:

• Microsoft's full post-incident report (preliminary version expected within days), to verify root-cause detail and remediation steps;
• Any disclosure in Microsoft's future filings or earnings of affected customer scale or service credits.

Sources:

• Microsoft Service Health status page (verified live: 2026-11-14 03:40 ET / 08:40 UTC)
• MacRumors: Microsoft 365 outage resolving (published: 2026-11-13 14:00 ET / 19:00 UTC)

Information only, not investment advice.