By Richard Speed
Publication Date: 2026-10-12 17:55:00
Microsoft took down the Exchange Admin Center (EAC) today after a code change left administrators facing an “Internal Server Error” when trying to access the service.
Microsoft first admitted that something was amiss at 0937 UTC on October 12, noting, “When attempting to access the Exchange admin center, affected admins may encounter an ‘Internal Server Error’ message.” Any administrator attempting to access the EAC could be affected.
It was more than an hour before the company stated: “We’ve identified unexpected 302 redirect errors during affected Exchange admin center (EAC) access attempts and are analyzing diagnostic logs to isolate the source of the access failures.
“While we continue our investigation, admins remain unable to…
