IRC (Internet Relay Chat)
There is also a Dominions chat room on GameSurge.net
Server: irc.gamesurge.net
channel: #dominions
port: 6667
You can try this link and see if your computer knows what to do without any other training...
#Dominions
You can go there and request a game. Setting one up is very fast, and the game play can go very fast. Diplomacy is instant using the chat rooms. Or you can go and ask questions in order to get a few very fast answers. But it is a chat room so between games you might have to put up with... well... chatting.
Here is a link to a discussion about it with some suggestions on software to use and how to use it.
Dominions IRC Channel #Dominions