Quoting Jeroen van Aart:
>> http://www.exim.org/eximwiki/DontObfuscate
> I am sorry for not describing my exact problem. The problem is that exim
I think this was more about using "222.333.444.555" and
"smtp1.mydomain.org" instead of the real values.
> does a dns lookup for smtp1.mydomain.org and finds an internal ip
> address, to which access is not allowed. Bind has been configured to
Why not simply route by domain then, instead of messing with dns?
internal_host:
driver = manualroute
transport = remote_smtp
domains = example.com
route_data = internal.host.example.net
(or use a file lookup if you need more hosts)