Originally Posted by shipon_97
Dear Friends ,
I am using Redhat Enterprise server . I make it a Mail server using SENADMAIL .
Now, I want a situation where my internal network users cannot send their mail
in external world (Like yahoo, hotmail or others) But they can send their mail
Plz give me a suggestion How can I do it ?
Are you trying to block any external access---or just mail?
I think what you need is a firewall--I have no personal experience, but there should be reams of info out there. Note that--once you have external access--you can always post mail using web sites. Give a clear description of exactly what priveleges you want your users to have.