block all outgoing email except one Virtual Domain

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)

 

Re: header_checks

Thanks, edge.

I will look into this and let you know how I go.