Millions of Hotmail users globally face disruption. The outage started early on July 10, 2025. Users in the United Kingdom, United States, India, and

A Microsoft systems error meant users are being sent a warning that their licence was not valid, with millions affected.

Millions of Hotmail and Outlook users across the world are facing login failures, server errors and stalled inboxes. The disruption began overnight on 10 July, with problems spanning major cities from London to Sydney.