Thousands of people reported issues with Microsoft 365 services, including Outlook, on Thursday afternoon, according to Downdetector. Just before 12 p.m., over 2,000 people had reported issues with Microsoft 365.

Microsoft Outlook and Microsoft 365 suffered an outage that prevented some users from accessing their email, and you might need to take action to get it back if you're affected.

Microsoft is investigating an Outlook bug causing desktop app crashes, high system resource usage, and preventing users from logging into their accounts.

Outlook has been the go-to mail app on Windows for several years now. After first debuting in 1997 with Office 97, Outlook is now part of Microsoft 365, the company’s productivity suite. You can send and receive emails with multiple accounts,

Initial feedback looks good, and outage reports on DownDetector are falling, so this could well be the end of the Outlook outage - if you're still having trouble, drop us a line on [email protected] - we'll stay vigilant for a little while longer to see if anything else happens!

Microsoft has fixed a known issue affecting Outlook for Microsoft 365 users that caused problems sending emails for those with too many nested folders.

Users just need to 'refresh/restart' their sessions Microsoft's Outlook app is crashing for European users due to memory problems, Redmond has warned, and evidence suggests the problems are spreading to the US.