ATLANTA — A Microsoft 365 and Outlook outage is impacting thousands of users on Thursday afternoon.
According to down detector, more than 100,000 users reported issues at one point on Thursday afternoon. The problems began just before 1 p.m., according to officials.
“We’ve determined a portion of infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors,” officials said. “We’re providing more information under EX1550543 and MO1550821 in the Microsoft 365 admin center, as well as status.cloud.microsoft.”
The company says they’re investigating the issues.
It is unclear when service will be restored.
This is a developing story. Stay with WSB Radio News for updates.
We're investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple connection methods in the Americas. More details can be found in the Microsoft 365 admin center under EX1550543.
— Microsoft 365 Status (@MSFT365Status) November 12, 2026
We're aggressively pursuing all pathways to reduce impact. We've paused all deployments, we're moving additional traffic off the affected infrastructure, and we're restarting affected servers to return them to service. More info under EX1550543 and MO1550821 in the Microsoft 365…
— Microsoft 365 Status (@MSFT365Status) November 12, 2026
We're investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple connection methods in the Americas. More details can be found in the Microsoft 365 admin center under EX1550543.
— Microsoft 365 Status (@MSFT365Status) November 12, 2026
