Outlook Is Currently Down & Not Working Due to Latest Outage, User Reports Explodes Past 110K on Downdetector

Following our report on the Exchange Online outage, Microsoft Outlook is now seeing another massive spike in user complaints. Downdetector reports have suddenly surged past 110,000, compared with a normal baseline of just 22. The latest spike suggests that the disruption is far from over.

Outlook outage reports cross 110,000 on Downdetector

The spike follows Microsoft’s confirmation of Exchange Online connectivity problems under incident ID EX1550543. The company initially reported that users were struggling to access mailboxes through multiple connection methods across the Americas. Microsoft later confirmed that the disruption could affect Microsoft 365 connectivity in any region. Potentially affected connection methods include Outlook on the web, MAPI, Exchange ActiveSync, and REST API.

Microsoft previously said it had identified connectivity errors within a portion of Exchange Online infrastructure. This infrastructure receives and processes mailbox access requests. The company was collecting network logs to investigate the source of those errors and determine the next steps. It also acknowledged that some administrators might be unable to access the Microsoft 365 admin center.

For those administrators, Microsoft is providing updates through an alternative link shared on its official status account. We’ll update this article once we receive any additional updates.

This is a developing story…