Tech News
Microsoft 365 outage disrupts Outlook users worldwide
Nov 12, 2026 · Summarized by Fundy Tech from 2 sources
The 30-second version
Microsoft says a Microsoft 365 infrastructure issue is affecting Outlook and other cloud services worldwide. More than 100,000 users reported problems, including mail access through web and apps.
Key points
- Microsoft linked the issue to elevated load across multiple regions.
- Exchange Online mailbox access was affected in the Americas.
- Downdetector showed more than 100,000 outage reports around 1:30 p.m. Eastern.
Why it matters
If you rely on Outlook for work, email may be slow or unavailable. That can delay customer replies, invoices and internal communication. Small businesses using Microsoft 365 should watch for service updates before chasing local device problems.
Who’s affected: Outlook and Microsoft 365 users worldwide
What to do
- Check Microsoft 365 Status for updates.
- Try again later if Outlook will not load.
- Tell staff email may be intermittent.
Original reporting
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