Hey guys, Great job. I tried ISPConfig 3, liked it, so I subscribed. I am now using it as the ISP in my development network. The development network has NAT gateway with resolvable public fqdn. The internal network uses a private address range and fictitiuos TLD. I want to block all outgoing mail, at the ISPConfig(ed) server, except for one Mail Virtual Domain which is publicly resolvable. How can I do this with ISPCOnfig 3 or do I need to edit the postfix configuration directly? I have the option of doing this at the gateway, but I would prefer to do it with postfix on the ISP server. Thanks
I'm doing this with "header_checks" in /etc/postfix/ Make sure that you restart postfix after addin the domain(s)