From: Wietse Venema (wietseporcupine.org)
Date: Fri Sep 01 2006 - 18:01:52 CDT

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busbyedoceo.com:
> Greetings,
> I have a single server with multiple IPs on the same ethernet interface.
> I want postfix to listen to all of them but say it's name differently.
>
> As in:
>
> .100 = mail.domaina.com
> .101 = mail.domainb.com
> .102 = mail.domainc.com
>
> I have reverse DNS setup for this but now I want Postfix to say:
> 220 mail.domaina.com ESMTP Postfix
> when someone conencts to .100 and to say:
> 220 mail.domainb.com ESMTP Postfix
> when someone connects to .101.
>
> Also when Postfix is sending I'd like it to use the domain of the sender
> to determine which interface and name to use for sending.

Use three separate Postfix instances. This executes the same
software, but uses three config directories and three queue
directories.

        Wietse

> I've been having trouble finding and answer in the help and with Google.
> All my multiple domain searches show how to accept for multiple virtual
> domains, which I've got. Ideas? What should I be searching for?
>
> /djb
>
>
>

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