SocketLabs incident
Microsoft Consumer Email(Hotmail) Service Outage
Resolved after 13 hours 52 minutes, on October 1, 2025.
Microsoft has marked issue ID EX1162980 as resolved. [https://status.cloud.microsoft/m365/](https://status.cloud.microsoft/m365/)
Update timeline
- monitoring Oct 01, 2025, 12:00 AM UTC
Microsoft Consumer Email services (Hotmail, Outlook.com, Live.com) are currently experiencing a global outage. This issue is not related to SocketLabs. Messages sent to these domains are returning transient errors and are being held in queue. Messages are not failing and will be delivered automatically once Microsoft restores service availability. 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/](https://status.cloud.microsoft/m365/)
- monitoring Oct 01, 2025, 11:10 AM UTC
As of approximately 8:00 UTC we are no longer seeing SMTP deferral responses returned to the attempted delivery of messages to the Microsoft Consumer Email services (Hotmail, Outlook.com, Live.com). Microsoft does not appear to have fully resolved the issue ID EX1162980 however. We will continue to monitor performance of the delivery of messages to Microsoft. Our systems remain fully operational. You can follow Microsoft's status updates on the incident here: https://status.cloud.microsoft/m365/
- resolved Oct 01, 2025, 01:52 PM UTC
Microsoft has marked issue ID EX1162980 as resolved. [https://status.cloud.microsoft/m365/](https://status.cloud.microsoft/m365/)
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