NEW YORK — Thousands of Microsoft Outlook users experienced issues with the email service from Wednesday evening through Thursday morning, with some users unable to load their inboxes or sign in.

According to Microsoft 365’s status page, the company began investigating Outlook-related issues on Wednesday night and subsequently began implementing a solution. However, the affected systems have not fully recovered, as the company discovered a complication with its initial fix.

“We identified an issue with the initial fix, and we’ve corrected it,” Microsoft 365 Status posted on X, formerly known as Twitter, Thursday morning. “We’re continuing to deploy the fix and are closely monitoring the deployment to ensure no further issues arise.”

Microsoft did not immediately provide more information about what had caused the outage. A spokesperson for Microsoft had no further comment when reached by The Associated Press on Thursday.

As of around 11:30 a.m. ET, more than 2,770 users worldwide had reported issues with Outlook, formerly also Hotmail, to outage tracker Downdetector.