On Thu, Nov 05, 2009 at 04:27:33PM -0500, Daniel L'Hommedieu wrote:
> Your postfix
> server will use DNS to query for the MX record for example.com, which will
> return mx.example.com. Ordinarily it would then query DNS for the "A"
> record for mx.example.com, but if you configure nsswitch.com to query files
> before DNS, you can put mx.example.com into the /etc/hosts file, with the
> desired IP address.
Much easier to just use a transport(5) table entry. If one is willing
to implement static overrides (rather than redirect DNS queries to an
alternate source), the transport(5) table is by far the simplest choice.
--
Viktor.
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