Jim:
I just now realized that some of the links were moved from their position in the document to the bottom of the document. Here are the links to the Exchange 2007 Help file information for each of the sections:
Multiple names in one certificate
How to Configure SSL Certificates to Use Multiple Client Access Server Host Names
http://technet.microsoft.com/en-us/library/aa995942.aspx
Method 1: Multiple Certificates
Deployment Considerations for the Autodiscover Service : Using Multiple Sites for Internet Access to the Autodiscover Service
http://technet.microsoft.com/en-us/library/aa997633.aspx
Method 2: Http Referral
Deployment Considerations for the Autodiscover Service : Hosted Environments and the Autodiscover Service
http://technet.microsoft.com/en-us/library/aa997633.aspx
Also I will be posting more direct steps per your request at the following link:
http://www.exchangeninjas.com/cascertificateconfig
BOE:
In response to your question about Exchange and Certs ... You have to run autodiscover with Certificates. We will not allow it to work otherwise. This is to help ensure the security of your users and your data.
Jim:
Is this an internal or External client? Internal clients get their connection point from the SCP and in the log your should see:
Attempting URL https://scp.company.com/autodiscover/autodiscover.xml
https://scp.company.com/autodiscover/autodiscover.xml found through SCP
The Key there is:
Found through SCP
If it is an external client then it will ONLY connect to autodiscover on mydomain.com or autodiscover.mydomain.com ... outlook is Hard Coded to connect using only thoses domains.
Hope this has addressed everyones questions
-Matt