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
