Null-client Configuration
/etc/postfix/main.cf: myhostname = srv1.rhce.local mydomain = rhce.local myorigin = $mydomain relayhost = 10.8.8.70 inet_interfaces = loopback-only mydestination = mynetworks = 127.0.0.0/8
Master Server Configuration
/etc/postfix/main.cf: myhostname = server.example.com mydomain = example.com myorigin = $mydomain inet_interfaces = all inet_protocols = ipv4 mydestination = example.com mynetworks = 192.168.1.2/32