Microsoft users have reported outages across several of its platforms, notably Outlook.
On DownDetector, thousands of Outlook users have said they are facing problems with the streaming service.
Some 33% of the problems are related to the login, 31% on its website and 23% on the Outlook app.
Is Microsoft down?
We're investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple connection methods in the Americas. More details can be found in the Microsoft 365 admin center under EX1550543.
— Microsoft 365 Status (@MSFT365Status) November 12, 2026
Microsoft has issued a statement, explaining that the issue began in the US but can now affect users in any region.
The company wrote on social media: "We're investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple connection methods in the Americas. More details can be found in the Microsoft 365 admin center under EX1550543.
"While we're working to mitigate impact, we've confirmed the issue may affect Microsoft 365 service connectivity for users in any region, more information will be provided in the Microsoft 365 admin center under EX1550543.
"We've determined a portion of infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors.
"We're providing more information under EX1550543 and MO1550821 in the Microsoft 365 admin center, as well as https://status.cloud.microsoft."
Other apps users have reported issues on include Microsoft 365, CoPilot, the store, and Teams.
You can see the full report via DownDector.
What is Downdetector?
Downdetector is an online website that allows users of popular services including X ( Twitter ), Instagram, Facebook , Virgin Media and more to report if they are having trouble with the services.
The site only reports an incident when the number of problem reports is significantly higher than the typical volume for that time of day.
Describing itself on its website, Downdetector is “where people go when services don’t work.”
The website monitors disruptions to various key services including the internet, web hosting platforms, banks, social media and more.
You can see the full methodology and learn more about how Downdetector collects status information and detects problems via its website.
In short, users can get involved by submitting any issue reports on the platform.
Problem indicators are also collected from social media and other factors on the web, Downdetector explained.
These reports are then validated and analysed in real-time.
An incident is then detected if the number of reports is significantly higher than the typical average for that particular service.
When a user goes to investigate the issue, they can see what the most reported problems are currently and check if their areas are in one of the outage hotspots.
Do you use Downdetector? Let us know in the comments.
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