MX record handling

[gravishanker at eagle.wesleyan.edu]

Hi

My sendmail setup on a Personal IRIS seem to work fine for outgoing Internet
mail most of the time. However, if the recepient host has only an MX record,
the mail is returned back saying that "Host unknown". If I did an nslookup with 
set type=any followed by the hostname, I do get relevent MX record information.
Is there anything special I am missing in my sendmail.cf file? Any help is
appreciated.

G. Ravishanker