Sendmail gives "realying denied"

Hi I have sendmail up and running in SuSE 7.2 The problem is, that when I try to send an e-mail, it gives me the error in netscape mailer: The mail server responded: 5.7.1 ... Relaying denied If I put that domain into /etc/mail/relay-domains, it will send it, but no other address will go out.. So it is not the correct setup then. Where should I look for to correct this? Jaska.