I've recently installed and configured an Exchange 2010 server. I've puchased a UCC certificate for autodiscover.outsidedomain
.com and inbox.outsidedomain.com. The internal server name is inbox.internal.local. When employees first open outlook, they receive:
"Security Alert: The Name of the Security Certificate Is Invalid or Does Not Match the Name of the Site"
I've created DNS records for inbox.outsidedomain.com on our internal DNS server to point to inbox.internal.local.
I've also followed this guide with no success: http://support.microsoft.com/kb/940726