If you would rather host a larger game, or one with other settings, I can host that also with many nice features (backups, email notifications, webbased status and reports, huge maps, mega games, etc).
http://forum.shrapnelgames.com/showthread.php?t=39629
The same can be done on Llamaserver.net to setup an email game since the games there can also be set for immediate hosting on receiving all turns.
And it can be done manually. On the IRC channel for instance there are people who will help you setup a game step by step.
http://forum.shrapnelgames.com/showthread.php?t=40486
It can also be done manually by entering the CHAT channel on this forum (the button is in the menu at the top of the forum). You can also create a seperate chat room for your game to allow for continual live-action chatter during the game.