Microsoft Outlook experiencing widespread outage
Everybody’s working for the weekend, but Microsoft Outlook clocked out early. The mission-critical email service is facing a widespread outage.
via 9to5MacReported by 10 outlets
Microsoft works to restore Outlook and cloud services after traffic overload triggers global downtime
The story so far
AI summary of the reporting below · Updated · How we work
Microsoft suffered a widespread outage on November 12, leaving users around the world unable to access Outlook email through web browsers and apps. Reports surged past 100,000 on tracking site Downdetector starting around 12:20 PM ET, reaching peaks between 120,000 and 130,000 concurrent complaints. While initial warnings cited Exchange Online connectivity issues across the Americas, Microsoft soon confirmed that the disruption potentially extended to users across any region. [4][1][5][6][7][9]
The connectivity failures spread beyond Outlook, leaving users unable to open Microsoft's own service status page or access the admin center. Microsoft's incident notices eventually listed Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot 365, and Microsoft Defender XDR as affected platforms, while users also logged problems with OneDrive and Azure. The issues impacted individual users alongside Business and Enterprise subscription tiers. [4][6][7][9]
Microsoft attributed the breakdown to elevated load across its infrastructure in multiple regions. To mitigate the disruption, the company began restarting impacted servers and redistributing connection traffic across its wider global network. Microsoft stated it is also investigating whether the elevated traffic originated from a genuine surge in user requests, an unexpected increase in a specific traffic type, or internal routing shifts. [4][1][9]
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10 outlets
Read at 9to5Mac
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