Hi, We have a postfix machine setup as described here: http://www.howtoforge.com/virtual-users-and-domains-with-postfix-courier-mysql-and-squirrelmail-ubuntu-11.10
and we would like to use a third party to do our spam filtering. So, we'd like to continue using the machine for authenticated outbound mail, but we want to limit the inbound mail to the third party mail server. How do we configure postfix to do this? Outbound: -------------- ANY IP (authenticated) -> Postfix -> The World! (OK) Inbound: ------------ A.B.C.D -> Postfix (OK) Anything else -> Postfix (DENIED) Thank you for your help. -Jon
