Can the SSL certificate be created for the public IP address rather than a domain or subdomain?
The Exchange server that we are migrating is only storing email, contacts, and calendars and then they have POP mail set up on their desktop computers that delivers their email to their respective exchange mailbox. Therefore they don't currently have a domain or subdomain pointing to their server. We can probably set something up, but if it isn't necessary, I'd rather skip that step.