Published: November 12th, 2026.
TWIN CITIES, MN - Microsoft is investigating reports of an outage affecting users attempting to access Outlook email services across the Americas on Thursday, November 12.
According to a service alert issued by Microsoft, users are experiencing issues accessing Exchange Online mailboxes through multiple connection methods.
The disruption could affect users attempting to access their email through Outlook and other services connected to Microsoft Exchange Online.
Microsoft said it is investigating the reports but has not provided an estimated time for when service will be fully restored.
Additional information about the incident is available to administrators through the Microsoft 365 admin center under incident number EX1550543.
The extent of the disruption and the number of users affected remain unclear.