Microsoft has identified failing server health checks and overwhelmed infrastructure as key parts of the problem. Microsoft
Microsoft is making progress restoring Outlook after a widespread outage disrupted access to email and several other Microsoft 365 services. The company says some affected servers have returned to service and are remaining stable, but recovery is still underway, meaning users could continue running into connection problems.
Digital Trends
The trouble began on Thursday, November 12, with Microsoft investigating reports of users struggling to access their Exchange Online mailboxes through multiple connection methods across the Americas. The company later confirmed that the problem could affect Microsoft 365 connectivity in any region. Microsoft’s latest updates suggest that the situation is improving, but the service isn’t quite out of the woods yet.
What caused the Microsoft Outlook outage?
Microsoft initially pointed to elevated loads across multiple regions as a likely reason behind the connectivity errors. However, its investigation revealed that this wasn’t simply a case of too many people trying to access their inboxes at once. Instead, a number of servers had unexpectedly become unavailable, putting additional pressure on the remaining infrastructure.
We’re testing a configuration change to address a problem that’s causing servers to fail automated health checks and become unavailable.
