Microsoft Outlook Outage: What You Need to Know About Today's Service Disruption

Thousands of users have reported issues with Outlook and other Microsoft 365 services today, November 25. This has led to a surge in searches on Google for terms like is Outlook down, Microsoft outage, and Outlook outage.

Why is Outlook Down Today?

Microsoft confirmed that they are investigating an issue affecting users trying to access Exchange Online or using calendar functionalities in Microsoft Teams. They stated:

“We’ve identified a recent change which we believe has resulted in impact. We’ve started to revert the change and are investigating what additional actions are required to mitigate the issue.”

This indicates that a configuration change may have triggered the outage, and Microsoft is working to reverse it.

What Reports Have Been Registered?

According to Downdetector, a platform for tracking digital service outages, there was a significant spike in problem reports related to Outlook starting at 4:00 a.m. Eastern Time. The reports escalated quickly as more users attempted to access their services.

What is Microsoft Doing to Resolve the Outage?

Microsoft has begun deploying a solution progressively across the affected environments and is performing manual restarts on machines that are in an unhealthy state. They also shared:

“While we continue to work on mitigating the issue, we’ve added a comprehensive list of impacted services and scenarios to the more info section. For more information, please refer to MO941162 in the admin center.”

How Long Could the Outage Last?

While Microsoft has not provided an estimated time for full resolution, past incidents suggest that outages can last for several hours. For example, a previous Microsoft 365 outage in July had global repercussions for multiple industries.

What Microsoft 365 Services Are Affected?

In addition to Outlook, services like Teams, Exchange Online, and calendar functionalities are also experiencing issues. Microsoft has provided a detailed list of affected services in their admin center under reference MO941162.

How is This Outage Impacting Users?

The outage is affecting both individual and corporate users who depend on Microsoft 365 for essential tools like email and online collaboration. Users have expressed frustration over access issues, particularly with Outlook emails and scheduled meetings in Teams. Microsoft is actively communicating updates regarding the service disruption on their social media platforms.