Signal
Microsoft 365 outage disrupts Outlook, Copilot and other services
Evidence first: scan the strongest sources, then decide whether to go deeper.
Published 2026-11-12 19:45 UTCUpdated 2026-11-13 15:26 UTC
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ai_infrastructureenterprise_aiservice_reliabilitycloud_services
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Evidence trail (top sources)
top sources (4 domains)domains are deduped. counts indicate coverage, not truth.4 top sources shown
Overview
A prolonged Microsoft 365 outage has disrupted Outlook and other services that depend on Exchange Online, including Teams, SharePoint Online and Copilot. Reports describe gradual recovery, but delayed email delivery and degraded functionality remain part of the response as Microsoft works to stabilize service.
Entities
MicrosoftMicrosoft 365OutlookExchange OnlineCopilot
Why now
- The disruption continued into a second day, with recovery still incomplete.
- Microsoft continued recovery actions as users reported restored access alongside delayed email.
Why it matters
- The outage affected core email services and connected enterprise applications, including Copilot.
- Delayed mail and degraded features can disrupt workflows that rely on Microsoft 365 and Exchange Online.
Evidence assessment
Recurring claims
- The outage affected Outlook and a broad range of Microsoft 365 services, including Teams, SharePoint Online and Copilot.
- Microsoft reported ongoing recovery efforts and extended email timeouts to help preserve delayed mail.
- The disruption continued for more than 12 hours, while the cause remained under examination in reporting.
How sources frame it
- Technology News Coverage: neutral
- The Register: questioning
Microsoft 365 disruption affected email, business applications and Copilot AI services, with recovery still underway.
All evidence
All evidence
Ars Technica
arstechnica.com · arstechnica.com · 2026-11-13 15:26 UTC
The Verge
theverge.com · theverge.com · 2026-11-13 12:48 UTC
The Register
theregister.com · theregister.com · 2026-11-13 06:40 UTC
Several Microsoft services appear to be down – what we know
Zdnet · zdnet.com · 2026-11-12 19:45 UTC
Show filters & breakdown
Evidence items loaded: 0Publishers: 4Origin domains: 4Duplicates: -
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