Hey folks, I'm going to pose a rather off-topic question if you all don't mind. Could use some advice...

I'm wanting to start a listserv for a community service organization I'm in. We have a pretty large member base, and trying to keep up with everyone's individual addresses is a nightmare. I need something freeware that will be simple and direct for users. Such software would dramatically improve our e-mail communication.

What do you folks suggest?