Hello, One of my clients wants to setup the following:
Exchange Server <- Mail In- and Outbound -> The Hosting Server <-> The Rest of the world.
This Setup is necessary, because they are on a dial-up line And basically My Server (where Other Domains are hosted as well, and which should not be affected) should act as a smarthost (In- and Outbound Relay).
How would I configure my Postfix to make something like this possible?
Thanks for your advisories!