Outlook and Microsoft apps cannot be used

Microsoft is currently addressing a widespread Microsoft 365 incident affecting Outlook and other services, but no verified universal restoration time is available; monitor Microsoft’s service-health updates for the latest estimated recovery time.^1^

Check restoration progress

• If this is a work or school account: ask your Microsoft 365 administrator to open Microsoft 365 admin center → Health → Service health → Active issues Microsoft is working on. The incident entry for Exchange Online or Office on the web will contain your organization’s current status, Microsoft’s next-update time, and any available recovery estimate.^2^
• If the admin center is unavailable: use the public Microsoft service health status page.
• If this is a personal Outlook.com account: check that same public page. The consumer status information may differ from the Microsoft 365 business/Exchange Online incident.

Reports on November 13, 2026 describe widespread disruption involving Outlook and other Microsoft platforms.^3^

What to do now

No client repair should be necessary when your account is covered by the active service incident. Avoid reinstalling Outlook, deleting its profile, or repeatedly changing account settings; access should recover as Microsoft restores the service.

If your organization’s dashboard shows Exchange Online as healthy while only your account or device remains affected after the incident is resolved, your administrator can then run the Outlook User Connectivity diagnostic. Microsoft recommends checking service health first when multiple users are affected.^4^

References

1. Microsoft service health status
2. How to check Microsoft 365 service health
3. Microsoft platforms including Outlook suffer widespread outages
4. Fix Outlook connection problems for Microsoft 365 account