T> I expect the thing that's slowing you down is DNS lookups. Perhaps
T> tweaking your routers to avoid them (which you can do since you're
T> using a smarthost) would improve matters. This would also allow you
T> to do all the routing at message submission time (i.e. offline)
T> so Exim will only use two connections (by default) which minimizes
T> the TCP setup delays.
The best I could figure out, aside from putting the IP addresses right
in route_list, is using macros. But then I suppose they are confined
to the exim.conf file. I don't want to mess beyond exim, e.g. I don't
want to tinker with /etc/ppp/resolv.conf.
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