Joe Acquisto-j4:
> >>>> 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.
>
Use a separate master.cf smtp client, with -o smtp_fallback_relay setting
in master.cf. And a relay_transport in main.cf that hands mail off to that
smtp client. Sorry, no example, typing from a waiting room.
Wietse
