I have a client with a Windows Small Business Server 2011 running Exchange (publicly accessible). It was originally setup with a mydomain.local domain suffix, and has functioned properly to this day. After getting help with installing a SSL certificate for Exchange recently, the Tech Agent (from Godaddy.com) informed us that the .local suffix "isn't allowed anymore" and that the domain name should be changed with a .com suffix. We do own the domain name it is suggested to be changed to. Is this a straightforward reconfiguration? Could anyone lead me to a tech bulletin that might outline the proper steps to do this without breaking our network functionality?