Microsoft’s Outlook stopped working for millions of people on Thursday and Friday, affecting 74 countries. Microsoft said it had no evidence of malicious activity, though it did not explain what triggered the failure. Teams and Copilot were hit as well, and Microsoft stretched its email timeout window to 48 hours.
With services disrupted, some users are considering alternatives until Microsoft sorts the issue.
Outlook outage and impacts
The outage affected Outlook services across 74 countries over Thursday and Friday and impacted millions of users. Microsoft reported no evidence of malicious activity but did not provide an explanation for what triggered the failure. The incident also affected Microsoft Teams and Copilot, and Microsoft temporarily extended its email timeout window to 48 hours.
Considering alternatives
Some users are looking for alternative email services or clients while Microsoft works on the problem. Microsoft has stated there is no evidence of malicious activity but has not explained the underlying cause.
For now, affected users must wait for Microsoft to resolve the issue and provide further details.

