I made this for a couple customers of mine. I just finished making it
generic enough for anybody to use.
It's like eximon, but can be run remotely without X, and IMO, is a
little easier to use than eximon.
Howto doc:
http://admc.com/blaine/howtos/exim-webapp/exim-webapp-all.html
Live sample server:
http://admc.com:8080/exim/