Relay Access Denied


So I’ve already tried reading through the other threads about the relay access denied server, but they either left me confused or seemed to be talking about a different basic problem.

Right now I have a dreamhost account with a subdomain ( on which I have based my email account ( and I have a friend running a server ( is currently using his mail exchange servers to bounce everything over to Hope that makes sense.

However, anything you send to gets bounced back with a Relay Access Denied error. What confuses me a bit is that it is getting bounced back by which makes me think that everything is fine over at and it is something wrong on at

Any thoughts? Do I need to make some changes to Postfix settings? Can I even make changes to Postfix settings?

Thanks for the help in advance.