Suppose initially I set up mobility with the domain name: mobility.domain1.com and my mobile devices use mobility.domain1.com as the server address in its exchange connection settings.

Now if for whatever reason I need to change the external domain name to mobility.domain2.com (with public IP address remaining the same).
If I use mobility.domain2.com on my mobile device then I will get a certificate/server name mismatch error.

So is it possible to add mobility.domain2.com as an additional domain name to the origial mobility server so that I don't have to reinstall it from scratch?

Thanks.