Millions of frustrated Microsoft users were left unable to access their emails today - but this evening the tech giant said normal service has resumed after the outage

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

Microsoft Outlook, the world’s go-to email and calendar tool, has been crippled by a major global outage since late 9 July. Millions can’t log in, read emails or send anything out. Frustrated users are met with vague errors like “Something went wrong” while Microsoft scrambles to fix failing mailbox infrastructure.