Forum Discussion
Outlook certificate alert
Hi, Our SSL certificate is expired today, but we renewed it two days ago. Today, Outlook pops up a security warning for all user saying "The security certificate has expired or is not yet va...
What was that certificate used for? Exchange? AD FS? Have you made sure to update it on all relevant endpoints? Removing it from the local store doesn't make a difference if Outlook is hitting a server with said certificate still installed.