Microsoft Outlook Down as Exchange Online Authentication Glitch Hits Thousands
Thousands of Microsoft Outlook users faced an outage tied to an authentication component issue in Exchange Online. Microsoft says a remediation strategy is being tested on part of the infrastructure before broader deployment, with the incident EX1464935 opened. Down Detector shows thousands of reports, including 37% unable to receive messages, 23% having trouble using the app, and 20% unable to access the website.