Microsoft Services Down Today? Latest Microsoft 365 Outage, Affected Apps and What to Do

Last updated: November 13, 2026. If Outlook is not opening, Teams is failing, or Microsoft 365 apps are slow, you are not alone. A widespread Microsoft service outage that began on Thursday, November 12, has affected users trying to reach Outlook and other Microsoft 365 services. Microsoft’s incident updates show partial recovery in some regions, but service was not yet stable in its latest update at 03:36 UTC on November 13.

Quick answer: Yes, Microsoft services are experiencing a widespread disruption. Outlook and Exchange Online are among the main affected services. Teams, Copilot, and other Microsoft 365 features that rely on Exchange Online may also have problems. Microsoft has not confirmed a full recovery time. Check the Microsoft 365 service health page for the newest status.

What happened in the Microsoft outage?

Microsoft began investigating connectivity problems across Microsoft 365 on November 12. The disruption prevented some people from accessing Exchange Online mailboxes, and some emails were delayed. Microsoft later said a process on affected servers that establishes secure connections was becoming overwhelmed, causing those servers to stop processing requests.

Microsoft has been adjusting traffic, restoring or restarting affected infrastructure, and testing configuration changes. Its latest available incident update said that some regions had partly recovered, but the changes had not yet produced a sustained recovery. Microsoft also said it had no indication that the incident was caused by malicious activity. These details come from Microsoft’s service health updates, available through a public mirror of Microsoft 365 incident reports.

Which Microsoft services are affected?

The impact can vary by account, region, and feature. Microsoft says features that depend on Exchange Online may fail even when other parts of an app continue to work.

• Outlook and Exchange Online: Mailboxes may not load, sending or receiving email may fail, and delivery may be delayed.
• Microsoft Teams: Calendar, meeting scheduling, invites, and some chat features may have trouble. Microsoft says core messaging and online meetings have generally remained available for many users.
• Microsoft 365 apps: Recent files and connected features may not load as expected.
• Copilot: Copilot Chat or answers based on work email, calendars, and files may be unavailable or incomplete.
• Other business tools: Microsoft lists possible impacts to services and features in SharePoint, Planner, To Do, Intune, Power BI, Purview, Defender, and Microsoft Graph.

This does not mean every Microsoft product is completely down. For example, Microsoft says files stored directly in SharePoint may remain accessible, even while features that depend on Exchange Online are affected. The Associated Press also reported widespread user trouble with Outlook, Teams, Copilot, and Microsoft 365, with outage reports peaking at nearly 130,000 for Outlook on Downdetector.

How to check if Microsoft is down

Use these quick steps to tell whether the problem is part of the wider Microsoft outage:

1. Check Microsoft’s service health page. Visit status.cloud.microsoft/m365 for public service updates. Microsoft 365 work or school account administrators can see more targeted details in the Service health section of the Microsoft 365 admin center.
2. Look at more than one app. If Outlook, Teams calendar, or Copilot are all failing at the same time, the issue may be related to Microsoft 365 rather than one device.
3. Check your connection once. Open a trusted website or switch networks briefly. If other sites work but Microsoft services do not, avoid repeatedly changing account or device settings.
4. Check again before retrying important work. Outages can recover in stages, so one feature may return before another.

What should you do while Microsoft services are down?

1. Save work locally. If an Office app is open, save a local copy where possible so you do not lose edits.
2. Use an approved backup channel. For urgent work, follow your team’s existing phone, messaging, or alternate email process. Do not send sensitive company information through an unapproved service.
3. Tell people about delays. If you are waiting for an email, file, or meeting invite, let the other person know through a channel that is working.
4. Avoid risky troubleshooting. Do not delete your Outlook profile, reset your password, or reinstall apps unless your IT team or Microsoft support recommends it.
5. Give queued messages time. If email delivery is delayed, check the service status before sending the same message repeatedly.
6. Ask your IT administrator to check tenant health. Business users should report the affected app, approximate time, and any error message. Administrators can follow Microsoft’s incident updates and share them with staff.

Is the Microsoft outage fixed?

At the latest confirmed update used for this article, 03:36 UTC on November 13, Microsoft had reported partial recovery in some regions, but not a sustained recovery. There was no confirmed restoration time in that update. Because the status can change quickly, check Microsoft’s service health page for the newest information before making plans around Outlook, Teams, or other Microsoft 365 services.

Frequently asked questions

Sources and live updates

Microsoft 365 service health status

Microsoft 365 incident reports (public mirror)

Associated Press: Widespread Outlook outage affects Microsoft apps

We will update this article when Microsoft posts a confirmed change in service status.