Microsoft 365 outage affects users worldwide
Microsoft confirmed a service disruption impacting Exchange Online access for users in multiple regions, with over 100,000 reports of connectivity problems.
Microsoft said it is investigating reports of users experiencing issues accessing Exchange Online mailboxes through various connection methods in the Americas. Details are available in the Microsoft 365 admin center under reference EX1550543. The company added that the problem may affect Microsoft 365 service connectivity for users in any region and that a portion of its infrastructure is experiencing elevated load across multiple regions, likely contributing to the errors. Downdetector recorded more than 100,000 outage reports around 1:30 p.m. Eastern time.
"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 said on X.
"While we’re working to mitigate impact, we’ve confirmed the issue may affect Microsoft 365 service connectivity for users in any region, more information will be provided in the Microsoft 365 admin center under EX1550543."
"We’ve determined a portion of infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors."