From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Mon Oct 01 2007 - 19:07:13 CDT

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On Mon, Oct 01, 2007 at 05:00:51PM -0700, dnk wrote:

> I was going through the documentation (to understand it better) as we
> speak anyways.
>

These are not random selections, they address the issue of how a delivery
mechanism (transport) and destination (nexthop) are selected to deliver a
particular message. You should by now have the impression that the key is
configuring transport selection correctly, but you can also apply other
"rewriting" strategies, to re-classify domains, customize delivery for
local mailboxes after aliasing, ...

When you ask a very general question, the best answers are also very
general.

> On 10/1/07, Victor Duchovni <Victor.Duchovnimorganstanley.com> wrote:
> > On Mon, Oct 01, 2007 at 04:22:52PM -0700, dnk wrote:
> >
> > > Hi there, I was wondering if there was a way to force postfix to look
> > > at DNS MX records for delivery of certain domains as opposed to local
> > > domains? We are migrating some domains to a new server, one of which
> > > is the "main" domain on the existing postfix server.
> >
> > http://www.postfix.org/ADDRESS_REWRITING_README.html
> > http://www.postfix.org/ADDRESS_REWRITING_README.html#resolve
> > http://www.postfix.org/ADDRESS_REWRITING_README.html#transport
> >
> > http://www.postfix.org/ADDRESS_REWRITING_README.html#virtual
> >
> > http://www.postfix.org/postconf.5.html#mydestination
> > http://www.postfix.org/postconf.5.html#local_transport
> > http://www.postfix.org/postconf.5.html#local_recipient_maps
> > http://www.postfix.org/postconf.5.html#mailbox_transport
> >
> > http://www.postfix.org/postconf.5.html#relay_domains
> > http://www.postfix.org/postconf.5.html#relay_recipient_maps
> > http://www.postfix.org/postconf.5.html#relay_transport
> > http://www.postfix.org/postconf.5.html#relayhost

--
        Viktor.

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