encrypting mailing list manager with remailing-capabilities

 Schleuder is an encrypting mailing list manager with remailing-capabilities.
 Subscribers can communicate encrypted (and pseudonymously) among themselves,
 receive emails from non-subscribers and send emails to non-subscribers via the
 list.
 .
 Version 3 is a complete rewrite, which aims to be more robust, flexible, and
 internationalized. It also provides an API to be used with schleuder-cli
 and/or schleuder-web.