Outlook Outage 11/12/2026

A Microsoft 365 administrator should report the ongoing impact through Microsoft 365 admin center → Health → Service health → Report an issue, or open a support request there if the outage is already listed but your organization remains affected.

A significant Microsoft 365 outage was reported on November 12, 2026, affecting Outlook and Microsoft 365, with Teams also reported as affected.^1^

If you are a Microsoft 365 administrator

1. Sign in to the Microsoft 365 admin center.
2. Select Health → Service health.
3. Review Active issues Microsoft is working on and open any incident covering Outlook, Exchange Online, Teams, or multiple Microsoft 365 services.
4. If your problem is not listed, select Report an issue, describe the affected services and users, and submit the form. The report appears under Reported issues, where its status can be tracked.^2^
5. If an incident is listed but service is still unavailable for your organization, open Help & support in the lower-right corner:
   • Describe the outage and its business impact.
   • If the suggested results do not help, select Contact Support.
   • Choose phone or email, confirm the contact details, and select Contact me.^3^

Include:

• When the disruption began, including time zone.
• Affected services: Outlook, Teams, Microsoft 365 portal, and any others.
• Approximate number or percentage of affected users.
• Whether web, desktop, and mobile clients are all affected.
• Any displayed error messages or correlation/request IDs.
• The service-health incident ID, if one is shown.
• That impact is continuing after the latest incident update.

If you are not an administrator

Contact your company’s IT help desk or Microsoft 365 administrator and ask them to submit the report. Microsoft’s business support methods require an administrator; Service Support and Helpdesk administrators can view service health, while broader admin-center access depends on the assigned role.^2^^3^

If your company buys all Microsoft 365 subscriptions through a partner or reseller, that partner must be contacted to open or coordinate the support request.^3^

If the admin center is unavailable

Use Microsoft’s public service status page to check for a known sign-in or service incident. The public page is useful during admin-center access failures, but the authenticated Service health dashboard contains the tenant-specific incident details and reporting form.^2^

References

1. Microsoft 365, Outlook Down for Thousands of US Users, Downdetector Shows
2. How to check Microsoft 365 service health
3. Get support for Microsoft 365 for business