Microsoft 365 and Outlook are down to start the work week — Microsoft confirms outage
windowscentral.com Apr 27, 2026

Microsoft 365 and Outlook are down to start the work week — Microsoft confirms outage

AI-summarised brief · reviewed before publication

Microsoft confirmed an outage affecting Microsoft 365 and Outlook services, with users experiencing intermittent issues accessing the platforms. The outage began around 4:50 AM ET and has been reported on Downdetector. Microsoft has shared updates on the official Microsoft 365 Status account on X, stating that users may experience sign-in failures, "too many requests" errors, or unexpected sign-outs. The company is investigating the issue and will provide further updates.

💡 Why It Matters

  • · Microsoft 365 and Outlook are the backbone of enterprise communication for millions of organizations globally.
  • · An outage hitting at the start of the work week — affecting sign-ins, email, and Teams simultaneously — illustrates how deeply concentrated modern workplace productivity has become around a single vendor's cloud infrastructure.