Microsoft 365 Outage Disrupts Outlook, Exchange Online and Teams
Microsoft 365 suffered a widespread outage Thursday, disrupting access to business email and other cloud services across multiple regions. Microsoft initially reported that users in the Americas were having trouble connecting to Exchange Online mailboxes. It later identified potential disruption to Teams, SharePoint Online, Microsoft 365 Copilot and Defender XDR.
Some users of Google Workspace (formerly G Suite) also reported trouble accessing their Google-hosted email through Outlook desktop and mobile email clients.
Microsoft traced the increased load on its infrastructure to a large number of servers becoming unavailable, leaving the remaining systems to handle the traffic. The company said overall traffic had not increased.
In an update just before 3 p.m. ET, Microsoft said affected servers were failing automated health checks and that it was testing a workaround that bypasses the component responsible for processing those checks. The company said it was also investigating elevated processor usage on affected servers.
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