Hello I'm going to be setting up my first production Postfix server in a VPS. It'll be the staticIP front-end to a full standalone mail server on my home LAN that's now stuck behind a dynamic IP.
Over the past couple of weeks I've been reading the documentation and playing with the various instance types locally. There's a million ways to do everything, and they all seem to work well! :-) I just want to ask a couple of questions to narrow down my options to the right & best "fit". This planned server in the VPS needs to do ONLY the following (1) anti-spam on inbound mail (2) forward inbound mail to the home server on its dynamic IPv4 (or over IPv6) (3) store inbound mail if the home server/connection is down, then deliver it when it's up again (4) act as a smarthost that the home server sends through, so the external 'net "sees" mail from the VPS' static IP. (5) make sure that ALL local mail on the VPS is only sent to an "rem...@mydomain.com" address on the home server; I.e., NO local mail delivery. My main questions are: (1) What are the nominal, specific Postfix instances that I need to do that ^^ that? By any chance is there a single example that you might know of for that simple combined config? (2) Should I configure all that in only one instance, or is there a good reason to use Postfix's "multi-instance" setup? -Gornle
