Configure Postfix to relay sub-domains

Configure Postfix to relay sub-domains

I found myself in need to having Postfix relay or forward an entire sub-domain to a remote server. My setup includes a number of test servers running my development installs of the Freeside Billing system. The setups need to be able to both send and receive email. Sending is for system email delivery. Receiving is mainly for the built-in Request […]