Yubin Ruan:
> Can anyone tell me how to point postfix to a VPN connection? I have
> setup a VPN listening at background on my Ubuntu and I want to point
> postfix to that listening port whenever postfix try to connect to the
> internet.
Wietse:
> You specify
> /etc/postfix/main.cf:
> relayhost = smtp:[host on other side of tunnel]
Gary Sellani:
> Could the host be something like 10.8.0.0/24?
I wrote 'host' not 'network block'.
Consider the network as a collection of layers. An example applicable
to Postfix looks like: physical layer (ethernet), network layer
(IP), transport layer (TCP), and application layer (SMTP). In this
architecture, an SMTP destination is a domain or host, where the
host may be specified as an IP address. It's not an IP address block
nor is it an ethernet broadast domain.
Wietse
