Make sure to set inet_interfaces = all
Sometimes this is set to localhost and will not allow relays
Make sure to set mynetworks = 127.0.0.0/8 192.168.0/28
So the Local LAN is covered
Set mydomain & myhostname
mydomain = mail.dev06.example.org myhostname = mail.dev06.example.org myorigin = $mydomain append_dot_mydomain = no relayhost =