Hi all, I need create server with 5 IP addresses (interfaces) and postfix(es). The role of this server is relay. If message delivered into my mail server on one ip address, for example, 172.16.35.35, so this message should be sent from same ip: 172.16.35.35. In other words, on which interface the message came, with this should be sent. What method should I do? 1. Postfix multi instace (postmulti) 2. Postfix manual multi instance ( http://advosys.ca/papers/email/58-postfix-instance.html) 3. Configure master.cf and main.cf of one postfix instance.
Thank you.
