>>>> Wietse Venema <wie...@porcupine.org> 10/20/16 1:56 PM >>> >Joe Acquisto-j4: >> Currently have postifx configured to relay mail via a "relay_host" >> (main.cf). There is a need to send mail to a certain domain via >> a different host. Google has suggested a few ways, transport >> hash, header filter. >> >> Since this special destination has a primary and a secondary IP, >> how might I specify more than one IP for this "custom" domain? > >With multiple address records in DNS or /etc/hosts. See also: >http://www.postfix.org/postconf.5.html#smtp_host_lookup > > Wietse
/etc/hosts as it is a "private" domain. A VPN is used. I would need to "fall back" to the secondary, should the primary be unresponsive. joe a.