Barracuda incident
Microsoft Outage Affecting Barracuda Products in All Regions
Ongoing since 07:10 PM UTC, affecting Web Interface and Management Web UI and 1 more.
A widespread Microsoft 365 and Outlook outage is impacting thousands of users across the Americas and globally. As such, Barracuda functionality that relies on MSFT integrations are delayed. We are closely monitoring the situation. • Affected Services: Microsoft Outlook, Exchange Online mailboxes, Microsoft 365 connectivity, and temporary issues with Microsoft Teams • Cause: Microsoft has confirmed connectivity errors on a portion of its Exchange Online infrastructure and noted unusually high demand across multiple regions • Current Status: Engineers are redistributing connection traffic across global infrastructure to balance the load and mitigate the impact, tracked under incident EX1550543 in the Microsoft 365 admin center
Affected components
Update timeline
- monitoring Nov 12, 2026, 07:10 PM UTC
A widespread Microsoft 365 and Outlook outage is impacting thousands of users across the Americas and globally. As such, Barracuda functionality that relies on MSFT integrations are delayed. We are closely monitoring the situation. • Affected Services: Microsoft Outlook, Exchange Online mailboxes, Microsoft 365 connectivity, and temporary issues with Microsoft Teams • Cause: Microsoft has confirmed connectivity errors on a portion of its Exchange Online infrastructure and noted unusually high demand across multiple regions • Current Status: Engineers are redistributing connection traffic across global infrastructure to balance the load and mitigate the impact, tracked under incident EX1550543 in the Microsoft 365 admin center
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