Help setting up Exim as relay host for private network

[Bruce Jackson <bjackson@pobox.com>]

I am trying to setup exim 3.02 on a potato system.  The system is the
firewall/gateway for my network.  The problem is that I can accept email
for the internal host but the email is not routing to the internal
host.  Exim does not know what to do with it.  The internal host is in
the /etc/hosts file of the gateway.  Exim does not seem to look there. 
I can ping and traceroute to the internal email server.  How exactly do
I configure exim.conf to do this.

exim.conf

qualify_domain = gateway.home.com

qualify_recipient = internal.home.com
receiver_unqualified_hosts = 172.16.1.2

local_domains = localhost:gateway.home.com

local_domains_include_host = true
local_domains_include_host_literals = true

relay_domains = *.home.com

never_users = root

host_lookup = *

host_accept_relay = 127.0.0.1:172.16.0.0/24

# percent_hack_domains=*

trusted_users = mail

smtp_verify = true

######################################################################
#                      TRANSPORTS CONFIGURATION                      #
######################################################################
#                       ORDER DOES NOT MATTER                        #
#     Only one appropriate transport is called for each delivery.    #
######################################################################



remote_smtp:
  driver = smtp

end


######################################################################
#                      DIRECTORS CONFIGURATION                       #
#             Specifies how local addresses are handled              #
######################################################################
#                          ORDER DOES MATTER                         #
#   A local address is passed to each in turn until it is accepted.  #
######################################################################

real_local:
  prefix = real-
  driver = localuser
  transport = local_delivery

system_aliases:
  driver = aliasfile
  file_transport = address_file
  pipe_transport = address_pipe
  file = /etc/aliases
  search_type = lsearch
# user = list
# Uncomment the above line if you are running smartlist

userforward:
  driver = forwardfile
  file_transport = address_file
  pipe_transport = address_pipe
  reply_transport = address_reply
  no_verify
  check_ancestor
  file = .forward
  modemask = 002
  filter

localuser:
  driver = localuser
  transport = local_delivery

smart:
	driver = smartuser
	new_address = ${local_part}@aes1.aes.ac.in
	
end


######################################################################
#                      ROUTERS CONFIGURATION                         #
#            Specifies how remote addresses are handled              #
######################################################################
#                          ORDER DOES MATTER                         #
#  A remote address is passed to each in turn until it is accepted.  #
######################################################################

lookuphost:
  driver = lookuphost
  transport = remote_smtp

literal:
  driver = ipliteral
  transport = remote_smtp

LAN_deliver:
	driver = domainlist
	transport = remote_smtp
	route_list = "aes1.aes.ac.in bydns_a"
	
end




Thanks in advance for your help in this matter.

-- 
Bruce Jackson

Debian Linux:  because reboots are for hardware upgrades!
www.debian.org		www.fsf.org	    www.linux.com