Microsoft reports mass outages in US, impacting customer accessibility

Microsoft reported widespread disruption to Microsoft 365 services in the United States, affecting access to Outlook, Teams and other tools. The outage left some customers unable to use email and workplace services, and also affected connectors used by OpenAI and Anthropic, making their tools work unpredictably.

Downdetector recorded reports from nearly 130,000 Outlook users shortly after 1 p.m. Eastern time, with reports easing later. Customers described trouble sending or receiving email or being unable to access Outlook altogether; Copilot and other Microsoft 365 services were also affected. Microsoft said elevated load on part of its infrastructure was likely contributing to connectivity errors and that it was working to reduce the impact. It had earlier said Teams access in North America was restored.