Microsoft Outlook Users Hit by Widespread Outage on Monday Morning

Thousands of Microsoft Outlook users reported issues on Monday morning, with Downdetector tracking over 6,000 reports of problems in a short window. The largest share of issues involved receiving messages, followed by app-related problems and login issues.

Microsoft acknowledged the outage on its Microsoft 365 Status account on X, stating it was investigating reports of Exchange Online issues. The company pointed users to incident EX1464935 in the admin center for updates.

Later that day, Microsoft confirmed the scope of the problem, saying it had verified that users may be experiencing degraded functionality across various Exchange Online features.