I occasionally open the new mail message feature in #emacs on accident. It seems like such a handy thing to run my email through emacs but I've never sat down to figure it all out. I don't think I feel the same way about #irc and #xmpp. I like #xchat and #gajim too much for that. I'll keep using #claws until I decide to make the crazy leap to emacs as a MUA.