Microsoft Outage Today: Outlook, Teams & 365 Still Down?

If you've been trying to open Outlook, send a message through Microsoft Teams, or access your Microsoft 365 account and nothing seems to work, you're certainly not alone.

A widespread Microsoft outage has disrupted several of the company's major services, leaving thousands of users struggling to access their emails, workplace tools, and other essential applications.

The disruption began on Thursday, November 12, and continued into Friday, November 13, 2026. What initially appeared to be an Outlook connectivity problem turned into a much broader Microsoft 365 service disruption affecting businesses, government organizations, and individual users in multiple regions.

So, what's actually happening? Is Microsoft Outlook down? Why is Teams having problems? And, perhaps most importantly, when can users expect everything to return to normal?

Here's what we know so far, what's behind the disruption according to Microsoft's investigation, and what you can do if you're currently affected.

Microsoft Outage: What Happened on November 12–13?

The latest Microsoft outage started attracting widespread attention around midday on Thursday, November 12, in the United States. Users began reporting that Outlook wasn't loading properly, emails weren't going through, and several Microsoft 365 applications were behaving unpredictably.

According to reporting by Reuters and The Associated Press, the disruption quickly spread beyond individual email problems. Microsoft Teams, Copilot, and other services connected to the company's productivity infrastructure also experienced difficulties.

Downdetector, a website that tracks user-submitted outage reports, recorded nearly 130,000 reports involving Outlook shortly after 1 p.m. Eastern Time. Reuters subsequently reported a peak of more than 130,000 U.S. Outlook problem reports, with another report putting the figure at approximately 138,058.

It's worth understanding what those numbers actually mean. Downdetector counts submitted problem reports, not a verified total of affected customers. The real number of people experiencing problems may be different.

Still, the sheer volume of complaints made one thing pretty clear: this wasn't simply a case of someone needing to restart their laptop or reset an email password.

Which Microsoft Services Are Affected by the Outage?

One reason this incident has caused so much frustration is that Microsoft 365 isn't a single application. It's a connected ecosystem of services, and several of its features rely on the same underlying infrastructure.

Microsoft's incident information identifies Exchange Online as a particularly important part of the disruption. Other Microsoft 365 services that depend on email, mailbox access, or related infrastructure can experience problems even if their main applications appear to be running.

These are reported potential impacts, not a guarantee that every user or every feature of every listed service is down. Microsoft has indicated that functionality not dependent on Exchange Online may continue working.

That's an important distinction. For example, someone might be able to open Teams and participate in certain conversations but still have trouble accessing calendar information or scheduling a meeting.

Why Is Microsoft Outlook Not Working?

This is probably the question most frustrated users want answered.

Based on Microsoft's investigation, the problem is connected to infrastructure and server availability rather than a simple issue with individual Outlook installations.

Microsoft identified a number of servers that were unexpectedly becoming unavailable after failing automated health checks. As those servers dropped out of service, the remaining infrastructure had to handle more connections and requests.

That created a difficult situation. More traffic was being pushed toward a smaller pool of available infrastructure, increasing the load and contributing to further connectivity problems.

Microsoft also discovered that some servers initially brought back online could become unresponsive again once they started receiving traffic.

Understanding the server problem

Think of it this way: imagine a busy highway with several lanes suddenly becoming unavailable. All the vehicles still need to get somewhere, but now they're forced into fewer lanes. Traffic starts backing up, travel times increase, and the situation gets worse.

That's not a perfect technical description of Microsoft's infrastructure, of course, but it gives a reasonable idea of why losing server capacity can affect so many connected services.

Microsoft has been working to redistribute traffic across its wider infrastructure, restart affected servers, and investigate the processes causing those servers to stop responding.

Is the Microsoft Outage a Cyberattack?

With a disruption this widespread, it's understandable that some people immediately started wondering whether Microsoft had been hit by a cyberattack.

However, there is currently no confirmed evidence that a malicious attack caused this particular outage.

Reuters reported that Australian Home Affairs and Cyber Security Minister Tony Burke said Microsoft did not believe the incident was a cyberattack. He also described the situation as having similarities to an earlier technology disruption involving a problematic update.

Microsoft's subsequent incident updates also stated that its investigation had not identified signs of malicious activity.

That doesn't mean every technical detail has been established. The investigation has been ongoing, and Microsoft has not provided a definitive final root-cause report.

How Microsoft Is Trying to Fix the Outage

Microsoft has been pursuing several recovery approaches rather than relying on one simple fix.

Its incident updates describe a combination of infrastructure recovery, traffic redistribution, server restarts, and diagnostic investigations.

1. Redistributing network traffic

One of Microsoft's major recovery steps has been shifting connections away from affected infrastructure and toward alternative routes across its global network.

The idea is straightforward: reduce pressure on struggling infrastructure while restoring capacity elsewhere.

2. Restarting affected servers

Microsoft has also been restarting servers that became unavailable. However, bringing a server back online doesn't automatically mean the problem is solved. Some recovered servers reportedly became unresponsive again after receiving traffic.

3. Restricting certain types of traffic

Microsoft has temporarily limited certain traffic types in affected locations as part of its investigation. This helps engineers determine whether particular requests are contributing to the server instability.

4. Rebuilding servers with an earlier software configuration

Another recovery approach involves rebuilding some affected servers using a previous software configuration. Microsoft is evaluating whether this approach can help prevent the servers from becoming unresponsive again.

5. Analyzing network and infrastructure behavior

Microsoft is examining diagnostic information and traffic patterns to understand why the affected infrastructure is failing and how it can be stabilized.

These efforts help explain why recovery hasn't been instantaneous. Restoring a large interconnected cloud service requires more than simply switching a server off and on again.

How Many People Have Been Affected?

There's no independently verified final number of affected Microsoft customers available at the time of writing.

However, outage-tracking reports give us a useful indication of how widespread the disruption became.

• Downdetector recorded nearly 130,000 Outlook problem reports shortly after 1 p.m. Eastern Time on November 12, according to AP.
• Reuters reported that Outlook complaints peaked above 130,000 in the United States, with another reported peak figure of approximately 138,058.
• Microsoft 365 and Teams also received thousands of problem reports.
• Reports of service problems appeared in multiple countries, including India, Australia, and Japan.

The disruption wasn't limited to individual users checking their personal email. Organizations that depend on Microsoft's cloud services for everyday operations also experienced problems.

Businesses and Government Agencies Also Feel the Impact

The Microsoft outage is a reminder of just how much modern business depends on cloud-based productivity tools.

When an email platform or workplace communication service stops functioning properly, the consequences can go well beyond a few delayed messages.

Reuters reported that the U.S. House of Representatives was among the organizations affected, with its engineers working with Microsoft on the disruption.

Government organizations in Australia were also affected. Reuters reported that Australian government agencies, including the country's spy agency and federal police, experienced disruption.

In Japan, government officials said the incident had affected government IT infrastructure and that authorities were monitoring the situation.

The impact extended to businesses, too. Electric truck manufacturer Workhorse Group postponed its planned third-quarter financial results announcement from November 12 to November 16, citing business disruptions caused by the global Microsoft outage.

In other words, this wasn't just an inconvenience for people who couldn't check their inbox. It affected organizations that depend on these services to coordinate work, communicate with customers, and handle important operations.

Did the Microsoft Outage Affect OpenAI and Anthropic?

Here's another interesting part of this incident.

The disruption also affected integrations used by major artificial intelligence companies, including OpenAI and Anthropic.

OpenAI said it was investigating an issue involving Microsoft connectors. According to Reuters, some new connections were failing, and certain tools weren't working as expected.

Anthropic also reported an issue involving an upstream provider that was affecting its Microsoft 365 connector.

This is an important detail because AI services increasingly rely on integrations with workplace platforms. When an underlying service such as Microsoft 365 experiences infrastructure problems, connected AI features can also be affected.

It doesn't mean that every ChatGPT or Claude feature stopped working. The reported problem concerned particular Microsoft 365 integrations and connectors.

Is Microsoft Outlook Down Right Now?

As of the latest information available for this article on November 13, 2026, Microsoft's service-health reporting still indicated degradation across affected Microsoft services.

That means users may continue to experience problems accessing Outlook, connecting to Exchange Online, or using certain Microsoft 365 features.

However, the experience may vary depending on the service, account, region, and connection method.

Some users may regain access while others continue experiencing errors. A partially restored service doesn't necessarily mean the entire outage has been resolved.

If you're wondering whether Outlook is down specifically for your account, there are a couple of useful places to check.

• Microsoft Service Health: Check Microsoft's official service status.
• Downdetector: View user-submitted Outlook outage reports.
• Microsoft 365 Status: Follow Microsoft's service-status updates on X.

Keep in mind that Downdetector reflects reports submitted by users. Microsoft's official service-health information is the better source for confirmed service incidents.

What Should You Do If Outlook or Microsoft Teams Isn't Working?

If you're currently affected, there's no need to panic or start changing every setting on your computer.

When the problem is on Microsoft's infrastructure side, repeatedly reinstalling applications or changing account passwords usually won't fix the underlying issue.

Still, there are a few sensible steps worth trying.

1. Check Microsoft's official service status

Before troubleshooting your computer, visit Microsoft's service-health page. If the relevant service is experiencing a confirmed outage, you'll know that the problem may not be on your end.

2. Avoid repeatedly sending the same email

If Outlook isn't responding, check your Sent Items and Outbox before trying to send the same message multiple times. This can help prevent duplicate emails if a previous attempt actually went through.

3. Save important work locally

If you're working on an important document, save a local copy whenever possible. Don't rely entirely on cloud synchronization while services are experiencing instability.

4. Use alternative communication methods

If an urgent business conversation can't wait, use an approved alternative communication channel. This might be a phone call or another company-approved messaging platform.

5. Don't make unnecessary account changes

Changing passwords, removing accounts, or reinstalling Office applications without a clear reason may create additional problems. Follow your organization's IT guidance if you're using a company-managed account.

6. Give the service time to recover

Microsoft has indicated that users may reconnect gradually as infrastructure capacity returns. If the service is still unstable, waiting for official recovery updates may be the most sensible option.

Why This Microsoft Outage Matters Beyond Outlook

It's tempting to look at an incident like this and think it's simply another technology company having a bad day.

But there's a bigger issue worth considering.

Businesses, schools, government agencies, and millions of individual users rely on cloud platforms to handle essential daily tasks. Email, document storage, meetings, security tools, and AI-powered applications are increasingly connected.

That connectivity makes modern workflows more convenient, but it can also create dependencies. When one important part of the infrastructure experiences problems, several seemingly unrelated applications may start behaving unpredictably.

The latest Microsoft outage demonstrates why organizations need reliable backup communication methods, sensible data-saving practices, and contingency plans for cloud-service disruptions.

It also highlights the importance of infrastructure resilience. Large cloud platforms must be able to handle unexpected server failures without allowing those failures to spread across multiple services.

Microsoft Outage: What Happens Next?

Microsoft has been working to restore affected infrastructure and improve service stability. However, the recovery process has been more complicated than initially expected because some servers have become unresponsive again after being returned to service.

The company is continuing to investigate traffic-management imbalances and evaluate recovery approaches, including rebuilding affected servers using an earlier software configuration.

For now, users should rely on Microsoft's official status updates rather than assuming that everything is back to normal simply because one application starts working again.

We'll need to wait for Microsoft's further updates and its eventual incident report to understand the full technical cause and what steps the company plans to take to prevent a similar disruption.

Frequently Asked Questions (FAQs)

Final Thoughts

The November 12–13 Microsoft outage has been a significant disruption for people and organizations that depend on Outlook, Teams, and Microsoft 365 every day.

While Microsoft has made recovery efforts, the situation has shown how quickly infrastructure problems can affect a large collection of connected services. The company is still investigating the underlying server and traffic-management issues, and a definitive explanation will require further updates.

If your Outlook inbox is still refusing to load or Teams isn't behaving as it should, don't assume your account is broken. Check Microsoft's official status information first, keep important work backed up, and wait for the affected services to stabilize.

We'll continue to watch for Microsoft's next update because, at this point, users deserve a clear explanation of what went wrong and when they can expect a completely reliable service again.

Sources and Further Reading

1. Reuters – Microsoft outage disrupts Outlook, Teams, businesses and governments: Read Reuters report.

2. Associated Press – Widespread Microsoft outage affects Outlook and other applications: Read AP report.

3. Microsoft – Official service health status: Check Microsoft Service Health.

4. Microsoft incident information – Exchange Online and Microsoft 365: View reported Microsoft incident updates.

5. Microsoft 365 incident MO1550821 – November 13, 2026: View incident timeline and updates.

Last updated: November 13, 2026. Service availability and incident details may change as Microsoft publishes additional information.