and since you're probably not running the DNS at the DA server, you should add a DNS A record with the ip adress of the DA server.
It worked for me, but the only problem I ran into was that sending e-mails to my own domain (from the webpage f.i.) was not possible because DA automatically creates a DNS server it query's.
So with a bit of playing around with the DNS settings you should be able to get it all working!
