Microsoft 365 outage disrupts users worldwide

A Microsoft 365 outage is affecting users worldwide, with over 100,000 reports of connectivity issues logged. Microsoft is investigating and working to mitigate the impact. The problems began spiking shortly after noon Eastern, with the company confirming issues accessing Exchange Online mailboxes through multiple connection methods. Microsoft attributed the errors to elevated load across infrastructure in multiple regions. Microsoft is providing updates under reference EX1550543 in the Microsoft 365 admin center. The outage may affect service connectivity for users in any region, according to the company's statements.