REstriction Relaying!! but how?

[joelim]

does anyone knows how to restrict relaying and allow certain none local domain to use sendmail as their smtp server.
thank you!!

------------------
Lim Pey Foong
Tech Dept
http://www.tssb.com.my
tel:603-62767910
fax:603-62760912
mobile: +6016-2031511