Folks around the planet are today unable to use Microsoft Skype and Office 365’s Outlook due to a baffling “Throttled” error message.

The weird text box pops up in the chat software and cloud-backed email client, preventing people from sending messages, and talking to contacts.

This is, according to Microsoft, due to a botched update to Azure’s backend authentication systems. The internal upgrade was introduced as its engineers brought servers knocked out by storms in Texas back online, and promptly broke Outlook and Skype. Outlook Web Access is said to be unaffected.

Source: Ever wanted to strangle Microsoft? Now Outlook, Skype ‘throttle’ users amid storm cloud drama • The Register