Good - These seem to work.
Bad - These definitely don't work. It's probably our fault. We'll look into it.
Stupid - These seem to work. Unfortunately, they aren't configurable to accept a non-standard SMTP port. Therefore, you have to replace your normal SMTP daemon with the EOF daemon. You also have to run the EOF SMTP daemon as root. However, you can still read mail just fine without any of this craziness, just not send it. You should bug the software's developers to add support for non-standard SMTP ports.