# Microsoft Outlook is down

Source: [Tech | The Verge](https://www.theverge.com/tech/1032226/microsoft-outlook-is-down) · 2026-11-12 · Industry
Page: https://themorning.dev/story/microsoft-outlook-is-down-b96b7d9fc07a01bf
Kind: outage · Impact: medium

## In brief

- Microsoft Outlook, Teams, and other Microsoft 365 services went down for users worldwide on November 12, 2026.
- Microsoft says failed server health checks and "elevated load" caused many servers to become unexpectedly unavailable.
- Microsoft is still investigating the cause and has disclosed no evidence of a cyberattack.

## Why it matters

Developers relying on Outlook, Exchange Online, Teams, Copilot, or Microsoft Cloud connections may face disrupted email, collaboration, and integration workflows while the outage lasts.

## Timeline

- 2026-11-12: Outage reports of Outlook and Microsoft 365 access problems begin to surface worldwide
- 2026-11-12: Microsoft acknowledges the issue via its Microsoft 365 Status account, citing elevated load and failed server health checks

## Coverage

- [Microsoft 365 Outage Disrupts Outlook, Exchange Online and Teams](https://www.securityweek.com/microsoft-365-outage-disrupts-outlook-exchange-online-and-teams/) — SecurityWeek, 2026-11-12
- [Microsoft Outlook is down](https://www.theverge.com/tech/1032226/microsoft-outlook-is-down) — Tech | The Verge, 2026-11-12
- [Microsoft Cloud Outage Hits Outlook, Teams, Copilot and AI Services](https://securityaffairs.com/202932/security/microsoft-cloud-outage-hits-outlook-teams-copilot-and-ai-services.html) — Security Affairs, 2026-11-12
- [Massive Microsoft 365 outage disrupts Outlook, Teams, Copilot worldwide](https://www.bleepingcomputer.com/news/microsoft/massive-microsoft-365-outage-disrupts-outlook-teams-copilot-worldwide/) — BleepingComputer, 2026-11-12
- [Major Microsoft Outlook Outage Leaves People With Email Jobs Unable to Email](https://www.wired.com/story/major-microsoft-outlook-outage-hits-365-customers-north-america/) — Security Latest, 2026-11-12
- [Users report being unable to access Outlook, Teams, and other Microsoft 365 services; Microsoft says many of its servers became unexpectedly unavailable (Anna Washenko/Engadget)](https://www.techmeme.com/261112/p51#a261112p51) — Techmeme, 2026-11-12
- [Multiple Microsoft 365 services are experiencing an outage](https://www.engadget.com/2315259/multiple-microsoft-365-services-are-experiencing-an-outage/) — Engadget - Technology News & Expert Reviews, 2026-11-12
- [Microsoft’s Outlook email hit by new outage](https://techcrunch.com/2026/11/12/microsofts-outlook-email-hit-by-new-outage/) — TechCrunch, 2026-11-12
- [Ask HN: Microsoft/Azure Outage?](https://news.ycombinator.com/item?id=50471668) — Hacker News: Front Page, 2026-11-12

Tags: microsoft-365, outlook, outage, azure, exchange-online

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Dev – https://themorning.dev