/usr/share/ciderwebmail/bin/ciderwebmail_cgi.pl
/usr/share/ciderwebmail/bin/ciderwebmail_create.pl
/usr/share/ciderwebmail/bin/ciderwebmail_fastcgi.pl
/usr/share/ciderwebmail/bin/ciderwebmail_server.pl
/usr/share/ciderwebmail/bin/ciderwebmail_test.pl
You may install this package on Debian with
apt-get
install ciderwebmail