Many years ago I wrote a mailing list manager, called Enemies of Carlotta.
I have stopped developing it. I am no longer using it. If you would like to take over development, please do.
The current code is in git, you can browse it at
http://git.liw.fi/cgi-bin/cgit/cgit.cgi/eoc/ with a web browser, or
clone it from
git://git.liw.fi/eoc to use it.
I no longer run a mailing list for eoc, but there's a new one: