Microsoft Outlook Down - Millions of Users Affected With This Longest Outage in Microsoft History

According to Microsoft, affected users attempting to visit sites such as , , , and , along with related regional domains (e.g., .co.uk, .nl, .fr), are encountering a “500 Internal Server Error.” This error indicates a failure in site rendering, preventing access to critical services. A widespread outage affecting Microsoft 365 services has left users across the globe unable to access key platforms, including Outlook, Hotmail, and the main Microsoft 365 website, since Wednesday evening. As a temporary workaround, Microsoft has advised users to access alternative URLs, including for the general Microsoft 365 page and for Outlook. We've identified an issue where users may be unable to access some Microsoft sites. For ongoing updates, users are encouraged to monitor Microsoft’s official service status page or follow the company’s announcements on social media platforms. The disruption, which began at 10:30 PM UTC on May 14, 2025, has impacted both individual users and businesses relying on these services for email and productivity tools. Microsoft has assured users that it is prioritizing the issue and working to restore full functionality as quickly as possible. Microsoft has identified the root cause as a code regression introduced in a recent feature update intended to enhance service logic.

This Cyber News was published on cybersecuritynews.com. Publication date: Thu, 15 May 2025 13:19:54 +0000


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