Microsoft reported issues with users’ Exchange Online mailboxes and an issue with Microsoft Teams, according to social media posts Thursday.
“We are investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple sign-in methods in the Americas,” the company wrote, after first reporting “users experiencing issues accessing or using Microsoft Teams features in North America.”
The company initially said that issues with Exchange Online mailboxes could be due to infrastructure “undergoing high load in multiple regions.”
Microsoft later clarified: “We have determined that the high load is not due to an increase in traffic, but to a number of servers being unexpectedly unavailable, putting a strain on the remaining infrastructure.” »
Regarding the issues with Microsoft Teams, the company followed up shortly after first reporting the issue, writing: “Our mitigation measures were successful in restoring the health and functionality of the service. »
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Downdetector, which monitors outages, reported problems with Microsoft Teams and Outlook, among other products, on Thursday.
Regarding issues affecting Exchange Online mailboxes, the company added: “We have confirmed that the issue may affect Microsoft 365 service connectivity for users in any region.”
The company continued to provide updates on the potential fix for the mailbox issue on Thursday and added: “We are aggressively pursuing all avenues to reduce the impact.” We have paused all deployments, are removing additional traffic from the affected infrastructure, and are restarting the affected servers to return them to service.
This is a developing story. Please check again for updates.
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