Microsoft is currently addressing an ongoing outage affecting Outlook.com, which has resulted in sign-in failures for many users. The issue began over three hours ago, causing significant disruptions in accessing mailboxes.
Details of the Outlook.com Outage
According to Downdetector, a service monitoring outages, thousands of users have reported login difficulties. The primary complaints involve connection issues and unexpected sign-outs. Microsoft acknowledged these problems on its service health status page.
User Impact
- Many customers are experiencing “too many requests” errors when attempting to sign in.
- Some users are being automatically signed out of their accounts.
- Sign-in failures are perceived as intermittent by affected customers.
Microsoft’s investigation indicates that client sign-in scenarios might be influencing the reported behavior. The company is focusing on examining interactions across various service components to diagnose the problem.
Previous Outages and Related Issues
This is not the first time Microsoft has faced issues with Outlook services. Just last month, the company dealt with an Exchange Online outage that hindered access to mailboxes and calendars. This disruption affected various access methods, including:
- Outlook on the web
- Outlook desktop
- Exchange ActiveSync
On the same day, Microsoft resolved another issue affecting sign-ins for Office.com and Microsoft 365 Copilot services, which impacted desktop apps and Teams integration.
Future Updates
As of now, Microsoft has not disclosed the outage’s root cause or the number of users and regions affected. Nonetheless, the incident has been categorized as causing “service degradation.” This term is typically used for issues that significantly impact user experience but do not completely disrupt service for all customers. Updates regarding the situation are expected as the investigation continues.
