SocketLabs incident

Delayed Delivery to Microsoft 365 Domains

Minor

Resolved after 15 hours 52 minutes, on January 22, 2026.

resolved Jan 23, 2026, 02:25 PM UTC

This has been reported as resolved by Microsoft. https://status.cloud.microsoft/m365/

Update timeline

monitoring Jan 22, 2026, 08:37 PM UTC

Microsoft Business Email services (a.k.a. Office365 / Microsoft365) are currently experiencing significantly degraded performance. Messages delivery attempts to domains that use Microsoft are returning transient errors and are being held in queue. Messages are not failing and will be delivered automatically once Microsoft restores service availability. This issue is not related to SocketLabs systems or infrastructure. Our systems remain fully operational, and we continue to monitor the situation closely. You can follow Microsoft's status updates on the incident here: https://status.cloud.microsoft/m365/
resolved Jan 23, 2026, 02:25 PM UTC

This has been reported as resolved by Microsoft. https://status.cloud.microsoft/m365/

Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.