Hi, I have a configuration change to make to our postfix relays and I want to confirm it will work as intended (before I mis-route email for 1,000 people).
I think I have what is a fairly common Postfix environment - Dual instances - Instance 1 for inbound - AmavisD, Spamassassin, and some other "secret sauce". 99.9% of this inbound email is scanned with amavisd, and a few other checks, and is passed to our Exchange servers. Instance 2 for outbound - We directly deliver email today. The outbound instance is used for all internal email systems (Exchange, other *nix systems, scanners, etc). We are changing our filtering and archiving so that we will need to route outbound (Internet destined) mail through a service provider instead of direct delivery. Since this environment is primarily a relay server, I seem to be having an issue wrapping my head around using a smarthost and yet still sending email internally. Will the smarthost send everything out to the smarthost destination? Or will it still use mail routing as defined in Transport to internal emails. For instance, if an internal *nix box send a message to someone in our domain today, it uses the Transport definitions to locate the Exchange servers. If I define a smarthost, will it still look at Transport? Or will it send it out to the smarthost? Thanks RD
