DNS MX Record

[vu.phan at intertrade.com]

Hi,

We own the following domain: intertrade.com.  I'm trying to set up a 
test email server with the following name: svy01ad00.intertrade.com.  I 
am able to send mail internally by typing in 
user at svy01ad00.intertrade.com but am unable to send mail externally 
(i.e. Yahoo).  I have the following entries in DNS:

svy01ad00		IN	A   x.x.x.x
			IN	MX  10 svy01ad00.intertrade.com.

Yahoo returns a message that saids "Sorry, I couldn't find any host 
named svy01ad00.intertrade.com. (#5.1.2)."  This message comes after a 
couple of days.  I've gone thru the DNS and Bind book for help and the 
DNS entry looks ok.  Can anyone help?

Thanks in advance,