Microsoft Outlook outage (November 2026): what happened and what to do

Late on Thursday 12 November 2026 (India time), many people who rely on Outlook and other Microsoft 365 services found they could not get to their email. The trouble began in the Americas, and reports from Asia and Australia followed on Friday. Microsoft said it was not a cyberattack. As of 13 November, recovery was only partial and no root cause had been published.

If your business in India runs on Microsoft 365, this guide explains what happened, how to tell an outage from a fault on your own computer, what to do (and what not to do) while it lasts, and how to fix Outlook when there is no outage at all.

What happened

Here is the timeline, using only what has been publicly reported so far. Times are shown in US Eastern time, GMT and Indian Standard Time (IST).

• Thursday 12 November 2026, shortly after 1 pm US Eastern (18:00 GMT, about 11:30 pm IST): problems began. Reports on the outage-tracking site Downdetector peaked at about 130,000, according to Al Jazeera and Tom's Guide.
• What was affected: Outlook email (access to Exchange Online mailboxes), Teams, SharePoint Online, Microsoft 365 Copilot and other Microsoft 365 services, as reported by ABC News and Cyber Security News.
• Where: it started in the Americas. Microsoft said users in any region could be affected, and problems were reported in Asia and Australia on Friday 13 November.
• Microsoft's explanation: the company described "elevated load" on its infrastructure, caused by a large number of servers becoming unexpectedly unavailable, not by extra traffic. It said this was not a cyberattack.
• Recovery work: Microsoft paused deployments, moved traffic away from affected servers, restarted servers and limited some traffic. Some servers that had been restored became unresponsive again once traffic returned,.
• Incident IDs: EX1550543 and MO1550821 in the Microsoft 365 admin center. If you are an admin, you can look these up there.

What is still unknown: as of 13 November, Microsoft had not published a root cause, and recovery was partial. We do not yet know why so many servers became unavailable, or when everything will be fully back. This article will be updated if Microsoft publishes more.

Is it an outage or just you?

Before you change anything, spend two minutes working out whether the problem is on Microsoft's side or yours.

1. Open Outlook on the web (outlook.office.com) in a browser. If webmail also fails, the problem is almost certainly not your computer.
2. Open Outlook on your phone. If it also cannot connect, that points away from your PC.
3. Check Microsoft's service status page at status.cloud.microsoft. If you are an admin, open the Service health section of the Microsoft 365 admin center, which shows incidents affecting your organisation.
4. Ask a colleague, ideally on a different internet connection, whether they see the same thing.
5. Check that other websites load. If nothing loads, the fault is your internet connection, not Microsoft.

If webmail works but desktop Outlook does not, skip ahead to the troubleshooting list below. If everything is failing for everyone, it is very likely an outage.

What to do during a Microsoft outage

When the fault is on Microsoft's side, the best response is usually to wait, and to keep your business running in other ways.

• Do not reset passwords, rebuild Outlook profiles or reinstall Office. The fault is not on your computer, and these changes can create new problems that remain after the outage ends.
• Read what you already have. If Outlook is set to keep a cached (offline) copy of your mailbox, you can usually still read existing emails and draft replies. Drafts will send once the connection returns.
• Tell people email is delayed. Use a phone call or WhatsApp to reach key clients and your own staff, and say that replies may be late.
• Watch for scams. Outages are a favourite excuse for phishing emails and fake "Microsoft support" calls or messages. Microsoft won't call you out of the blue about an outage. Do not share passwords or install remote-access software for anyone who contacts you this way.
• Expect delays when service returns. Messages may arrive late, in batches or out of order.

After service comes back

• Check your Outbox and resend anything that is stuck.
• Look in Junk/Spam for delayed messages that may have been filtered on arrival.
• For anything important, such as a payment, a contract or a deadline, confirm with the sender by phone or WhatsApp rather than assuming it arrived.
• If something still looks wrong a day later, check the status page again before changing any settings.

When Outlook is not working but there is no outage

If webmail works and the status page is clear, the problem is probably on your PC. Work through this list for desktop Outlook on Windows, in order:

1. Check your internet connection and confirm that Outlook on the web opens.
2. Close Outlook completely and restart it, then restart the computer.
3. Start Outlook in safe mode: press the Windows key + R, type outlook.exe /safe and press Enter. If it works here, a faulty add-in is the likely cause.
4. Install Office updates: in Outlook, go to File > Office Account > Update Options > Update Now.
5. Run Quick Repair: open Windows Settings > Apps, find Microsoft 365 or Office, choose Modify, then Quick Repair.
6. If that does not help, run Online Repair from the same screen.
7. Create a new Outlook profile only as a last step, ideally with someone helping you, because it can duplicate or lose settings if done carelessly.

How to reduce the impact next time

No provider is immune to outages, so a little preparation goes a long way.

• Keep an up-to-date export of your contacts, so you can reach people through another channel.
• Have a second way to reach you. Put your phone number and WhatsApp on your website and in your email signature.
• Consider a backup or forwarding address for critical enquiries, so important messages are not stuck behind a single service.
• Have someone responsible for email. Choose a person, in-house or outside, who can check service status and handle email problems quickly.

If you would like someone to look after your website and email setup, see my Care Plans on the pricing page or get in touch.

Frequently asked questions

Sources

• Al Jazeera: Microsoft outage hits tens of thousands of users
• Tom's Guide: Microsoft Outlook down live updates (12 November 2026)
• ABC News: Outlook down, Microsoft outage reported
• Cyber Security News: Microsoft 365 massive outage, fixes fail as restored servers keep going unresponsive

Microsoft, Outlook, Microsoft 365 and Teams are trademarks of Microsoft Corporation. Ranjit Abraham / Alpha Dreamz is not affiliated with or endorsed by Microsoft. This article is general guidance based on public reports at the time of writing.