Question : How can I properly request a SSL certificate for internal domain

I need a SSL certifcate for my Windows 2003 domain controller and exchange server for LDAPS and POP3S communication with the company that provides our email archiving.  I've requested the SSL certificate using the CN name of my domain controller.  The problem is that our internal domain name has the same name of a registered public domain.  Is there a way to make this work without renaming my internal domain?

Answer : How can I properly request a SSL certificate for internal domain

If it is for external traffic then you request it for the common name of whatever the server is referenced on the internet.
So if the remote site is connecting to your server as mail.example.com then that is what you ask for the certificate. The real name of the server doesn't matter. As long as it resolves to what is expected then that is all that is required.

Simon.