Thanks for the suggestion, I didn't even know what an MX record was! :P So I did some research and kinda got my bearings. I told the dns people that all "email@example.com" was to be sent to the domain.com server. I hope that's correct. I was just wondering how long that change would take to come into effect, cause once I did the MX record I tried sending an email but to no avail. I was thinking that maybe it takes some time like dns records do. Oh, BTW, im using dyndns.org's custom dns service to do this all. (the one that costs money)
p.s. thanks alot for the speedy reply on that last one!