Re: More than one host in relayhost = ...?

[Wietse Venema]

Thomas Ackermann:
> I can map the mail-relays hostname only to one IP with /etc/hosts and 
> therefor, any redundancy is lost.

That is a bug in your operating system.

As a workaround, use smtp_fallback_relay.

I have used multiple IP addresses per name in /etc/hosts for as
long as I can remember, and that is about 21 years now.

    $ grep test /etc/hosts
    168.100.189.3           test.porcupine.org
    168.100.189.4           test.porcupine.org
    $ ./getaddrinfo test.porcupine.org
    Hostname:       test.porcupine.org
    Addresses:      168.100.189.3 168.100.189.4 
    $ host test.porcupine.org
    Host test.porcupine.org not found: 3(NXDOMAIN)

(using the getaddrinfo program that is bundled with Postfix
source code distributions).

        Wietse