Microsoft Outlook Outage: What Happened and What to Do Now

In short: Since Thursday night, 12 November 2026 (India time), Microsoft Outlook, Teams and other Microsoft 365 services have been failing for users around the world. Microsoft says the cause is a server problem inside its own system and not a cyberattack. At the time of writing, on Friday afternoon, 13 November, recovery is only partial and there is no fixed time for a full repair.

If your Outlook inbox did not open this morning, the problem is not your laptop, your internet or your password. This note explains in simple words what happened, why it happened, how India is affected and what your office should do now.

What Happened

The problem started on Thursday during office hours in the United States. Microsoft first confirmed it shortly before 1 p.m. US Eastern time, which is about 11:30 p.m. in India. Users could not open their online mailboxes, and emails were not being sent or received.

The trouble spread very fast. The outage tracking website Downdetector said reports came in from 74 countries and territories in about one hour. In India, complaints jumped sharply at about 11:21 p.m. on Thursday and rose again on Friday morning when offices opened.

More than 12 hours later, the service was still not fully back. Microsoft reported partial recovery in some regions, but said its fixes were not giving a lasting result.

Which Services Are Affected

The main problem is in Exchange Online, the system that runs Outlook email in the background. Because many Microsoft apps depend on it, other services were also hit.

IT admins can search the two incident numbers in the Microsoft 365 admin centre to see Microsoft's latest updates.

Why Outlook Went Down

Microsoft has explained the cause step by step. Here is the simple version:

1. Heavy load: a part of Microsoft's server system came under very heavy load in many regions at the same time.

2. Not extra users: Microsoft says the load was not caused by more people using the service. A number of servers suddenly became unavailable, so the remaining servers had to carry too much work.

3. Restarts did not hold: Microsoft restarted the affected servers. Some worked for a short time, but stopped responding again when real user traffic reached them.

4. Fix under test: reports say Microsoft then began testing a fix on a small group of machines and rolling back a recent change in its network settings.

Microsoft has not yet said what first made the servers fail. The company is still studying its logs.

Is It a Cyberattack?

No. Microsoft executive Charles Lamanna said publicly that there is no sign of hacking or cyber activity behind the outage. This is a service failure, not a reported data breach.

There is still one real risk. Scammers use this kind of confusion. Banks such as Standard Chartered and ING Australia have warned customers about fake tech support calls and messages. Be careful with anyone who contacts you and offers to fix your Outlook.

How India Is Affected

India is clearly affected, because the outage ran straight into our Friday working day.

• User reports: Downdetector reports from India climbed to almost 4,000 at around 10 a.m. and were still above 2,600 after 12 noon.

• Apps not opening: both Outlook on the web and the Outlook desktop app were not loading for many users.

• Airlines: IndiGo said its email support was affected and asked customers to use its website or app. Akasa Air reported delays in email support. Air India said it rerouted its emails and that flights were not affected.

Outside India, Japan's government offices could not send email for most of the working day and moved to paper, bankers in Hong Kong were locked out of email and Teams, and the State of Michigan in the United States told people that email replies would be late.

What to Do Right Now

1. Check the official status first: look at Microsoft's service status page or the Microsoft 365 Status account on X before you change anything on your PC.

2. Do not reset or reinstall: changing your password again and again or reinstalling Outlook will not fix a problem on Microsoft's servers.

3. Use another channel for urgent work: use phone calls, WhatsApp or SMS for urgent client messages, and tell key clients that email replies may be late.

4. Do not send the same email many times: all the copies may be delivered later, once the service returns.

5. Watch for scams: do not trust any call, email or link that promises to fix Outlook for you.

6. Wait for Microsoft to confirm the fix: an inbox that opens once does not mean the outage is over. The service may go up and down until Microsoft confirms full recovery.

Lessons for Every Business

This is not the first big Microsoft outage. Outlook and Teams also went down together in January 2023 after a network change, and Microsoft 365 was disturbed again in October 2025. It can happen again, so it is better to be ready.

• Keep a backup way to talk: decide today which channel your team will use if email stops, such as a phone list or a messaging group.

• Keep a second email route for emergencies: a backup mailbox with a different provider lets you keep sending urgent mail.

• Back up your email and files: the provider keeps the service running, but your data is still your responsibility.

• Write a one-page outage plan: who checks the status, who informs clients and which work can continue offline.

• Train your team about scams: every big outage brings fake support calls and phishing emails.

Outages are also a reminder to keep Outlook itself updated. Our note on Microsoft's November 2026 Patch Tuesday covers an Outlook zero-day that also needs attention.

Frequently Asked Questions

Is Outlook down today?

Yes. Outlook and other Microsoft 365 services have been disturbed worldwide since 12 November 2026. On Friday afternoon, 13 November (India time), recovery was only partial and Microsoft had not confirmed a full fix.

Why is Outlook not working?

Microsoft says a number of its servers suddenly became unavailable, which put heavy load on the rest of its system. The exact first cause is still being checked.

Is the Outlook outage a cyberattack?

No. Microsoft has said there is no sign of hacking or cyber activity.

When will Outlook be fixed?

Microsoft has not given a fixed time. Check Microsoft's official service status page for the latest update.

How Affix Center Can Help

Affix Center runs IT support, patching and endpoint management for companies and government offices. Our managed IT services in Mumbai help your team stay ready for days like this, with clear support and a simple plan to keep work moving. If this outage stopped your office, contact our team to review your setup.

Sources: Microsoft 365 Status updates, and reports by CNN, ABC News, The Next Web, The National and Smartprix.