Canonical configuration for multiple-instance Postfix?

Posted by threecheeseopera on Server Fault See other posts from Server Fault or by threecheeseopera
Published on 2011-06-25T07:07:02Z Indexed on 2011/06/25 8:24 UTC
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multiple-instances

I recently attempted to reconfigure an existing single-instance Postfix server (multi-homed) to support multiple MTA instances, but failed miserably (read: open relay, nastygram from ISP).

It appears that there are several methods that can be used to accomplish this, and the various (and numerous) secondary sources that I found online were 'all over the map' with respect to which they used/glued together.

Can anyone provide a working configuration (or tips) that use postmulti to manage a multi-instance Postfix setup?

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