[exim-dev] EXPERIMENTAL_PROXY clarification

I'm reviewing the EXPERIMENTAL_PROXY documentation and it looks like this allows me to use Exim as a proxy.

Is there any way to do the inverse? I'm thinking a transport option to send via a socks proxy. The idea is to use Exim MTA inside an environment with no default route to the internet.

Along the lines of:

begin transports
proxy_smtp:
    driver = smtp
    proxy = <socks4|5>:<proxy host or ip>:<port> (or equivalent lookup)

Matthew Schlosser