Joe has posted that VM allows certs for each domain with a dedicated IP. I'm having some trouble finding where exactly to add those certs. Probably it is right in front of me, nut I've spent an hour looking for it and searching the forums with no luck.
I'd like to be able to add a new cert for domain foo.com so that postfix, and dovecot, and proftpd, etc all use the cert for foo.com. I've figured out how to do this for the shared IP by editing each server.