Mail Gateway

[jgVersaweb]

I am having trouble setting up a mail gateway.
Running 4 Red Hat 7.2 using sendmail.

Mail server wil not allow my client PC's to relay mail. I am having to send mail from each individual box. would prefer to have mail server delevier all mail for the network.

Please give me a link for some education or a quick run down of the setup.

Thanks alot

 

[jgVersaweb]

I also have corect DNS all my hosts resolve both forward and reveres. I have a MX record for the mail host.
But keep getting relay denyed. I included my domain in /etc/mail/relay-domains but still won't relay. I have tried using webmin and cmd line and have not yet had any luck.