Microsoft 365 Outage Hits Office 365 Services
The outage affected multiple Microsoft 365 services, including Outlook, OneDrive, and Exchange, causing authentication problems and disrupting user activity, but a fix has been deployed to restore service.
Thousands of Microsoft 365 customers experienced issues with services like Outlook on Saturday, prompting Microsoft to investigate the cause and revert suspected code to alleviate the impact. The outage, which peaked around 4 p.m. Eastern Standard Time, affected multiple services including Outlook, OneDrive, and Exchange, in addition to Teams.
The outage caused users to experience authentication problems, including issues with receiving calls through Microsoft Teams-provisioned auto attendants and call queues. Microsoft confirmed that customers in Canada were experiencing authentication and connectivity issues with multiple Microsoft 365 services, including Exchange Online and Microsoft Teams. Data from Downdetector showed thousands of reports from users, with some experiencing restored access to their Outlook email accounts as services began to recover.
Microsoft has deployed a fix to restore service and has confirmed that the issue has been resolved. The company had not yet shared which regions were impacted by the outage or the root cause, but the swift resolution suggests that the issue was addressed efficiently. The outage highlights the importance of reliable cloud services, particularly for businesses that rely on Microsoft 365 for daily operations.
As Microsoft continues to investigate the cause of the outage, customers can expect further updates on the incident. In the meantime, services appear to be returning to normal, and users can resume their usual activities on Microsoft 365, including Office 365 services.
