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Microsoft Outlook and multiple Microsoft services suffer widespread outage due to server unavailability

1 fonte(s) · 1 atualização(ões) · publicado 12/11/2026 16:03 · coletado há 52 minutos

Microsoft is currently experiencing a widespread outage impacting its Outlook email service along with other major services including Teams, SharePoint, OneDrive, Office for the web, Copilot AI, and Defender XDR. The outage initially affected users in the U.S. and the Americas but has now expanded globally to all regions. Microsoft has attributed the incident to an unexpected unavailability of a large number of servers and elevated load across its infrastructure, causing service disruptions. The root cause remains under investigation, and no indication of a security breach or exploitation has been reported. This follows a similar service disruption in September related to an authentication configuration issue.

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  1. techcrunch.com ↗ · pub. 12/11/2026 16:03 · coletado 12/11 17:00 primeiro registro

    Microsoft Outlook and multiple Microsoft services suffer widespread outage due to server unavailability

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    Microsoft is currently experiencing a widespread outage impacting its Outlook email service along with other major services including Teams, SharePoint, OneDrive, Office for the web, Copilot AI, and Defender XDR. The outage initially affected users in the U.S. and the Americas but has now expanded globally to all regions. Microsoft has attributed the incident to an unexpected unavailability of a large number of servers and elevated load across its infrastructure, causing service disruptions. The root cause remains under investigation, and no indication of a security breach or exploitation has been reported. This follows a similar service disruption in September related to an authentication configuration issue.