[EXIM] Mail Hub/Gateway Conifg

Hello all........
I have a 3.10 system that passes all outbound mail to a single host through a
firewall, and that part works with out a problem using:

smart_route:
driver = domainlist
transport = remote_smtp
route_list = "* something.something.net bydns_a"

Now when mail comes into this system, it does not stay local to the machine, it
should check the /etc/aliases file and go
to systems that are within the firewall. I have looked through the docs and have
tried a few different routers and have not
had any luck. Does anyone have an idea?

Thanks again for the help,
Paul Yahnig