[Exim] Routers Section changes from 4.10 to 4.20

I am attempting to hard-code the destination IP address for non local relaying.

I used to be able to use the following in Ver 4.10
private_routes:
  driver = domainlist
  transport = remote_smtp
  route_list = abc.com  1.2.3.4  byname; \
               def.net  1.2.3.4  byname; \
               ghi.org  1.2.3.4  byname;

Ver 4.20 doesn't like the "domainlist" driver name.

Thanks,
Kurt