how can i setup sendmail for specified domain?

[trong <trong_ho2000 yahoo com>]

i got a mailserver for domain antqueen.com  got ip 203.162.52.78
(mail.antqueen.com)
anyone know how to set up this mailserver running?
i add the domain antqueen into /etc/mail/relay-domains but when i send
to
abc yahoo com by the helo protocol but always receive relay denied - ip
name
looup failed [203.162.52.78]
any one can help me to solve this problem?
thanks alots!!
trong van ho


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