From: Ronan Mullally (ronaniol.ie)
Date: Mon Oct 03 2005 - 03:25:25 CDT

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On Sun, 2 Oct 2005, MagnusBäck wrote:

> But sure, it might theoretically be possible with one or two Postfix
> instances using some really gross access map hacks, but then you'd be
> way better off with one instance per domain.

Given a choice between gross hacks and multiple instances I'll be going
with multiple instances (or extracting the info from the mail logs).

> > Another possibility might be to try and put messages from each of
> > the various smtpd listeners into different queues, which are then
> > delivered by smtp clients configured with queue-specific source
> > addresses, but I haven't looked into that properly yet.
>
> Do you by any chance have a sendmail background? Postfix doesn't have
> such a concept of multiple queues, so you don't have to look into it.

I cut my teeth on sendmail 10+ years ago - last time I looked it didn't
support multiple queues. Having re-looked, the multi-queue functionality
it has does not support what I'm after - I'd still need to run multiple
instances to ensure each domain's queue is processed with a different
source IP address.

-Ronan

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