Zalezny Niezalezny: > Hallo Wietse, > > yes I understand Your point. > > In my internal host, dns lookup is disabled. I simply would like to know > how may I specified some additional hosts in case of accidents one of them.
IF you can't rely on DNS, list all gateway IP addresses in /etc/hosts. /etc/postfix/main.cf: relayhost = [gateway] smtp_host_lookup = native /etc/hosts: gateway 10.0.0.1 gateway 10.0.0.2 gateway 10.0.0.3 gateway 10.0.0.4 /etc/host.conf: multi on Wietse