@delta I just installed it and it looks cool. What I don't understand is this:
1) If I use the (default) chatmail relay, can I communicate with users that use their own email address?
2) Is it possible for a single profile to use both a chatmail relay and an email address? (I think I can use multiple chatmail relays, but I'm clueless about this.)

Basically I'm just curious how it works under the hood, what are the limitations etc. I didn't find this in the FAQ. Can anyone clarify? Thanks.