I recently set up a brand new Exchange 2013 environment. Outlook is configured using autodiscover. Outlook 2013 works just fine, but for some reason I get this error using Outlook 2010r:
There is a problem with the proxy server's security certificate. The name on the security ticket is invalid or does not match the name of the target site [FQDN].
So, in my SSL cert I do have my server's FQDN, but if I check the exchange proxy settings I see the proxy server as https://server.sub.domain.com and the principal name as msstd:server.sub.domain.com
The principal name in my SAN cert is actually what I intended to use for all of my external URLs for the virtualdirectories, which is https://mail.domain.com
My question: How do I get autodiscover to use my principal name in my SAN SSL Cert, which is what I want to use, which is https://mail.domain.com instead of the FQDN of the server? Where can I make that change?