[Wolves] Using EXIM to send messages from OUTSIDE the network

[Wayne Morris]

Could someoen enlighten me the correct way to set up exim to allow just 
me to send email via my exim server
when connected to another provider.#
ie I currently have it set up to allow users on 192.168.1.x  to send - 
internally and to the outside world.

How would I edit exim.conf to allow me to send when I'm out on the road?

Cheers