We have an onprem Exchange server (2013) and Ouitlook 2010/2013 users.
I have one user out of 500 getting a certificate error every time she launches outlook. It's only this one user. She's connecting to one of our CAS servers and getting the message that the cert doesn't match. Of course, she can click ok and it works fine, but she gets the prompt every time.
Any ideas on how to clear this? I mean I could remove her profile and add it back, but that seems extreme.