authoritative records for MX records

Mon May 6 14:05:15 UTC 2002

Hi, i'm having problems in getting the internet addr for @sesb.com.my.

in getting the MX record for the domain name, the response was the
mx exchange = mail1.sesb.com.my which does not return the internet addr (ip
address)

we are running sendmail and i believe this has caused the mails going to
the
domain to be deferred (mhost map: deferred) error messsage.

can anyone help?

thanks in advance