Market Flux Event
Microsoft 365 Outage Knocks Out Outlook, Teams and Copilot as Server Failures Cause Global Disruption
Read this in the Market Flux appA major Microsoft 365 outage struck on Thursday, November 12, disabling or degrading access to Outlook email, the Teams video-conferencing app and the Copilot AI assistant for users across multiple regions worldwide. Microsoft attributed the disruption not to a surge in traffic but to a number of servers unexpectedly becoming unavailable, which created elevated load across its infrastructure. In response, the company began rerouting and redistributing traffic across its worldwide network to ease the strain.
At its peak, nearly 130,000 users had filed outage reports on Downdetector for Outlook alone, with separate tallies for Teams and Copilot also climbing sharply. The outage rippled beyond Microsoft's own products, breaking Microsoft connectors used by OpenAI's and Anthropic's AI tools. Reports of concurrent issues also emerged from Amazon Web Services and Google users on the same day, though the connection to the Microsoft incident was not confirmed by the companies. Microsoft said it was working to restore full service as the situation developed.
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Sources
- WallstengineMICROSOFT SAYS ELEVATED INFRASTRUCTURE LOAD ACROSS MULTIPLE REGIONS IS THE LIKELY CAUSE OF $MSFT 365 OUTAGE AFFECTING OUTLOOK, TEAMS AND COPILOT
- Cointelegraph🚨 ALERT: Microsoft confirms a major Microsoft 365 outage disrupting Outlook email access across the Americas, with users worldwide potentially affected.
- ZerohedgeMicrosoft Hit By Massive Outage, Scrambles To Reroute Traffic Worldwide
- ForbesMicrosoft 365 Down: Tech Giant Says Server Failures Causing Disruption
- FirstSquawkMICROSOFT SAYS A PORTION OF ITS INFRASTRUCTURE IS EXPERIENCING ELEVATED LOAD ACROSS MULTIPLE REGIONS, LIKELY CONTRIBUTING TO CONNECTIVITY ERRORS, AND THAT THE ELEVATED LOAD IS DRIVEN NOT BY AN INCREASE IN TRAFFIC BUT BY A NUMBER OF SERVERS BEING UNEXPECTEDLY UNAVAILABLE
- EuronewsMicrosoft services outage: thousands of users report issues with Outlook, Teams and Copilot. The company is working to restore services. ➡️
- CnbcMicrosoft outage hits Outlook. AWS and Google users also report issues
- Ny TimesOutlook, Teams and More Microsoft Programs Disrupted by Outage
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- NytimesOutlook, Teams and More Microsoft Programs Disrupted by Outage
- Seeking AlphaMicrosoft scrambles to repair Outlook outages, while Google, AWS report minor outages
- Crypto BriefingCerebras falls behind on first OpenAI capacity tranches as data center deals lag
- BNNBloombergMicrosoft outage disrupts workday for thousands of users in Canada, U.S.: Downdetector
- FinancialjuiceMicrosoft on outage: also diverting traffic to alternative routes where possible and noting partial recovery