Microsoft Outages: Issues Resolved More Than 24 Hours After Outlook, Teams Impacted

More than 5,300 people had reported issues with Microsoft 365 on the website Down Detector as of 12 p.m. EST on Monday—though reports dropped below 500 by 6 p.m.—with 85% of reports coming from issues with Outlook, 9% with Exchange and 6% with Sharepoint.

The company said most users were having issues accessing Exchange Online—a cloud-based email server—and Microsoft Teams calendars and it had started to deploy a fix as of 9 a.m. Monday after reports of issues started spiking significantly, which included “manual restarts on a subset of machines that are in an unhealthy state.”

The fix reached about 98% of customers as of late Monday morning, but the company later said on X its efforts to restart machines were “progressing slower than anticipated for the majority of affected users.”

By 11 p.m., Microsoft said its had “restored functionality for all impacted services except Outlook on the web” and some Outlook web users were still experiencing “mail queuing delays causing longer delivery times” Tuesday morning.

While Microsoft did not specify what change impacted programs, Monday morning was also the rollout of a new Recall AI tool for Windows Insiders that is meant to take regular snapshots of computer activity—essentially a “photographic memory” for computers—to store on PCs and make searchable later without remembering exact keywords or dates.

The feature first debuted in May but its initial version was criticized for privacy and security concerns, leading the full launch to be postponed.