This disruption, which has lasted for around fifteen hours, is preventing millions of users around the world from accessing their emails.
AI-generated summary
A global outage has affected Microsoft 365 tools since Thursday evening, notably impacting Outlook email and Copilot AI.
Microsoft's giant outage never ends. The American software giant indicated early this Friday, November 13, that the measures taken to resolve a global outage of Microsoft 365 connected tools, including Outlook messaging used by a majority of companies around the world and its Copilot AI, which began Thursday evening, were “not working as expected,” and that it was working to find alternative solutions. Around 1 p.m. this Friday, after nearly fifteen hours of outage, the company spoke of “encouraging progress in Europe” towards a resolution of the problem.
Which tools are affected?
According to Microsoft, the tools affected are those of its Microsoft 365 cloud environment, particularly used by businesses. This mainly concerns Outlook messaging, which allows you to receive and send emails. The Teams instant messaging app is also affected, but its core features like messaging and calling work.

A global outage of Outlook email and Microsoft 365 services affects tens of thousands of users in 74 countries on Friday, November 13. Microsoft cites an overload due to unavailable servers, ruling out any cyberattack.

A global outage affecting Microsoft 365, Outlook and Teams services is seriously disrupting the UK health service and government systems in Japan and New Zealand. Microsoft rules out any cyberattack.

A giant outage of Microsoft's cloud services paralyzed Outlook this Friday morning, affecting millions of users. Experts warn of the risks of cybercrime and advise avoiding personal emails for work.

French intelligence services have identified Iran's involvement in the October cyberattack that disrupted refrigerator temperatures in hundreds of supermarkets.

A global outage of Outlook email and Microsoft 365 services affects tens of thousands of users in 74 countries, unrelated to a cyberattack according to Microsoft.

Jonathan Hall, the British counter-terrorism adviser, warns of the risks to national security posed by Chinese AI Qwen3, which denies the 1989 Tiananmen massacre.