If you want PowWow to be able to send and recieve mail then you have to enter something into these fields. If you're unsure of what to enter, ask your Internet Service Provider. Since I don't use this part of PowWow very much I'm not sure what it looks like when running. If someone out there would like to write a bit about this I'd appreciate it very much.

The Graphical Beginner's Guide to PowWow