Hello all Not clued up on postfix at all so thought I would ask here.
I have primary and secondary MX servers, but my secondary server is on cable. My primary server is on the backbone. How can I configure my primary server to accept connections/mail from the secondary server but still refuse connections/mail from all other cable connections. My secondary (backup) server is nothing more than that. It hosts nothing else. Postfix 2.7.1 Regards Fred