I tried to set everything up using the guide, but the DC tells me that my password is incorrect. I tried it with a ton of passwords, and the program shows no sign of having had a connection attempt. I know the DC is pointing to my LAN IP and is able to access the internet using the Netopia method. Has anyone tried the self-server email method and gotten the same issue?
Edit: Whoops! It seems I had to make the DC username the full email address instead of the username in the server program. All good now!

Now to figure out how to limit it to only new messages...