system environment/daemons
- courier-authlib - Courier authentication library
- courier-authlib-ldap - LDAP support for the Courier authentication library
- courier-authlib-mysql - MySQL support for the Courier authentication library
- courier-authlib-pgsql - MySQL support for the Courier authentication library
- courier-authlib-pipe - External authentication module that communicates via pipes
- courier-authlib-userdb - userdb support for the Courier authentication library
- jabberd - OpenSource server implementation of the Jabber protocols
- pcsc-lite - PC/SC Lite smart card framework and applications