Outlook anywhere OWA Certificate principal name

Hello 

We are doing a migration from 2007 sp3 to 2013 sp1. Currently webmail.domainname.com points to the 2007 side for EAS,OWA and Outlook Anywhere. We are getting ready to move webmail.domainname.com to point to the 2013 CAS servers.  We recently purchased a new cert, however webmail.domainname.com is NOT the principal name in the cert, its a SAN name in the cert. Knowing that the webmail.domainame.com is a SAN name in the cert and not a principal name, is this going to prevent outlook anywhere and OWA clients from being able to connect?  Will i need to change the outlook provider to match the princiapl name in the cert once the new cert is imported?

Thanks

Bulls on Parade