• 24 June, 2022
• No Comments

Microsoft 365 Outage Affects Microsoft Teams and Exchange Online

An ongoing outage affects multiple Microsoft 365 services, with customers worldwide reporting delays, sign-in failures, and issues accessing their accounts.

Starting with Monday, June 20, at 11:00 PM UTC, users have been experiencing and reporting being asked to re-login, emails stuck in queues and not getting delivered, while others say they were unable to access their Exchange Online mailboxes via any connection method they tried.

The affected services include the Exchange Online hosted email platform for businesses and the Microsoft Teams communication platform, as well as SharePoint Online, the Graph API, and Universal Print.

“Users may encounter delays and experience failures when accessing some M365 services,” Microsoft explained in a service alert sent to Microsoft 365 customers.

Also Read: 13 phishing attack types and how to protect your business against them

“Users may also experience failures when using search functions within the impacted services.”

Microsoft says it is currently redirecting Microsoft 365 traffic to mitigate this outage’s impact while further investigating the root cause of this ongoing incident. 

“We’re redirecting traffic to an alternate, healthy, traffic management infrastructure to mitigate impact, while we continue to investigate the underlying cause of this issue,” the company added.

We're investigating an issue in which some users are experiencing delays or connection issues when accessing the Exchange Online service. Please see EX394347 in the admin center for more information.

— Microsoft 365 Status (@MSFT365Status) June 21, 2022

While Microsoft told customers they can find out more about this outage from the admin center under EX394347 and MO394389, multiple user reports suggest that those incident tickets are not showing up.

This outage follows a Cloudflare incident that brought down hundreds of high-profile online platforms and services this morning, with users seeing widespread 500 internal server errors.

In November, Microsoft 365 was affected by another outage that prevented users from accessing files stored on the SharePoint Online, OneDrive, Office, and Microsoft Teams cloud storage services.

---

Update June 2, 16:47 EDT: According to a new update from Microsoft, service has been restored to all affected products after restarting affected servers and rerouting traffic.

Also Read: Browser in the browser attacks: Why you should watch out

Rerouting traffic combined with targeted infrastructure restarts has successfully restored service access and functionality. Please refer to EX394347 and MO394389 in the Microsoft 365 admin center for additional details.

— Microsoft 365 Status (@MSFT365Status) June 21, 2022