Outage Disrupts Outlook and Other Microsoft 365 Apps

Several Microsoft 365 services have been affected by an outage since yesterday, and users may still be unable to use them despite Microsoft deploying recovery actions. Microsoft first acknowledged a disruption of Exchange Online mailboxes in the Americas yesterday, but the company later admitted that several Microsoft 365 apps, including Outlook.com, OneDrive, OneNote, Microsoft To Do, and Teams, were also impacted.

“Recovery actions are ongoing across affected Microsoft 365 infrastructure and progressing in phases. We’re seeing incremental improvement in several workloads, but service health remains variable and capacity has not yet fully returned to baseline. To protect delayed mail, we’ve extended the email timeout window to 48 hours while queue and backlog processing continues,” Microsoft posted less than an hour ago on its Microsoft 365 status X account.

Recovery actions are ongoing across affected Microsoft 365 infrastructure and progressing in phases. We’re seeing incremental improvement in several workloads, but service health remains variable and capacity has not yet fully returned to baseline. To protect delayed mail, we’ve…

— Microsoft 365 Status (@MSFT365Status) November 13, 2026

You can get more details about Microsoft’s progress to restore its Microsoft 365 services on the company’s Service Health Status portal. Here, the company details service degradation on Microsoft 365 (Business or Enterprise) and Microsoft consumer products.

Microsoft isn’t the only company to be impacted by a service outage today: Anthropic also acknowledged a major outage impacting users authenticating to Claude.ai and Claude Code. The company has already deployed a fix, and you can also monitor recovery actions on this page.