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Microsoft 365, Outlook down for thousands of US users, Downdetector shows
Developing story first seen 3 hours ago
Microsoft’s disruption may extend beyond the United States: the company said Microsoft 365 connectivity could also be affected in other regions. The outage affected Microsoft 365, Outlook and Teams, as well as connectors used by OpenAI and Anthropic, highlighting how an issue with Microsoft services can disrupt access to other platforms.
At 2:07 p.m. Eastern time, Downdetector had logged more than 97,000 reports of Outlook problems, over 38,000 for Microsoft 365 and about 4,500 for Teams; these are user reports, not confirmed counts of affected people. Microsoft said it had paused deployments, was shifting traffic away from affected infrastructure and restarting servers. It had earlier said a Teams disruption in North America was resolved, while OpenAI and Anthropic reported problems with their Microsoft 365 connectors.
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In short
- Microsoft 365 connectivity may be affected in other regions.
- Downdetector logged over 97,000 Outlook problem reports.
- OpenAI and Anthropic connectors were also disrupted.
How this story developed
- 1 hour ago Microsoft 365, Outlook and Teams experienced disruptions affecting thousands of users in the United States on Thursday, according to Downdetector reports. The outage also affected Microsoft connectors used by OpenAI and Anthropic, showing how problems with Microsoft services can disrupt access to other technology platforms.
- 1 hour ago Microsoft’s disruption may extend beyond the United States: the company said Microsoft 365 connectivity could also be affected in other regions.
Where outlets differ
Centre outlets 1
Only here: downdetector, shows
Right-leaning outlets 1
Only here: outage, disrupts, email
Every side used: microsoft, outlook, thousands, users
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Explained simply
Microsoft 365 is a collection of online work services, including Outlook for email and Teams for messages and meetings. People and organisations use these tools to communicate, share files and manage work, often through Microsoft’s cloud systems.
Other services can connect to Microsoft 365 to access information or support their own features. OpenAI and Anthropic, which make AI tools, offer connectors that rely on Microsoft services, so problems with those systems can affect access beyond Microsoft’s own apps.
When a widely used online service has technical problems, the effects can spread across workplaces and connected platforms. Downdetector gathers reports from users, but those reports do not confirm how many people are affected.
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