Jose Borges Ferreira:
> This is the scenario.
> Box 1 : just receive email from "outside" - inbound flow.
> Box 2 : used to sent email to the "outside" - oubound flow.
Inbound MTA: primary MX for your domain(s). If mail can't be
delivered, use Postfix's relayhost feature to deliver outbound mail
via the outbound MTA, if you can't use standard MX logic to deliver
directly to the sender's MX hosts.
Outbound MTA: if mail can't be delivered, use standard MX logic to
deliver NDRs to the sender's MX host(s).
Wietse
