Since the outage started two hours ago, affected IT administrators have reported seeing "HTTP Error 500" errors when attempting to log into the Exchange admin center portal. Microsoft is investigating an ongoing outage that is blocking admins worldwide from accessing the Exchange Admin Center (EAC). In a subsequent message center update, Redmond said its engineers have reproduced the issue internally and collected additional diagnostic data to assist with the troubleshooting process. Last month, the company mitigated another outage that prevented Outlook on the web users from accessing their Exchange Online mailboxes. Days later, it also addressed a week-long Exchange Online outage that caused delays and failures when sending or receiving email messages. Additionally, we're reviewing recent changes made to the service as a potential root cause," Microsoft says.
This Cyber News was published on www.bleepingcomputer.com. Publication date: Wed, 09 Apr 2025 14:40:16 +0000