How to configure smtp server in RH7.3
 

Hi,

How to configure smtp server on RH7.3 system (only accepts smtp connections from the internal network)

Thanks

Isn't that what you want?

But, if you want to accept mail for your domain, edit the following files:
/etc/mail/local-host-names
/etc/mail/relay_domains

just add your domainname in this files, and thats it.

(Im not sure if its needed in the relay_domains file, but thats what I have, and it works....

Good luck!