in the certificate that you have from GoDaddy server.servername.local has to be in the list of subject alternative name filed
you might want to request another certificate from Godaddy that supports multiple subject names
.. like mail.domain and actidoscover.domain etc..
follow this white paper for more scenarios
http://technet.microsoft.com/en-us/library/bb332063(EXCHG.80).aspx Thank you