/usr/bin/bouncesaying
/usr/bin/condredirect
/usr/bin/datemail
/usr/bin/elq
/usr/bin/except
/usr/bin/forward
/usr/bin/maildir2mbox
/usr/bin/maildirmake
/usr/bin/maildirwatch
/usr/bin/mailsubj
/usr/bin/pinq
/usr/bin/predate
/usr/bin/preline
/usr/bin/qail
/usr/bin/qbiff
/usr/bin/qmail-inject
/usr/bin/qmail-showctl
/usr/bin/qmail-tcpto
/usr/bin/qreceipt
/usr/bin/qsmhook
/usr/bin/splogger
/usr/bin/tcp-env
/usr/lib/qmail/bin/config-fast
/usr/sbin/qmail-clean
/usr/sbin/qmail-getpw
/usr/sbin/qmail-local
/usr/sbin/qmail-lspawn
/usr/sbin/qmail-newmrh
/usr/sbin/qmail-newu
/usr/sbin/qmail-pop3d
/usr/sbin/qmail-popup
/usr/sbin/qmail-pw2u
/usr/sbin/qmail-qmqpc
/usr/sbin/qmail-qmqpd
/usr/sbin/qmail-qmtpd
/usr/sbin/qmail-qread
/usr/sbin/qmail-qstat
/usr/sbin/qmail-queue
/usr/sbin/qmail-remote
/usr/sbin/qmail-rspawn
/usr/sbin/qmail-send
/usr/sbin/qmail-sendmail
/usr/sbin/qmail-smtpd
/usr/sbin/qmail-start
/usr/sbin/qmail-tcpok
/usr/sbin/qmail-verify
/var/lib/qmail/bin/bouncesaying
/var/lib/qmail/bin/condredirect
/var/lib/qmail/bin/datemail
/var/lib/qmail/bin/elq
/var/lib/qmail/bin/except
/var/lib/qmail/bin/forward
/var/lib/qmail/bin/maildir2mbox
/var/lib/qmail/bin/maildirmake
/var/lib/qmail/bin/maildirwatch
/var/lib/qmail/bin/mailsubj
/var/lib/qmail/bin/pinq
/var/lib/qmail/bin/predate
/var/lib/qmail/bin/preline
/var/lib/qmail/bin/qail
/var/lib/qmail/bin/qbiff
/var/lib/qmail/bin/qmail-clean
/var/lib/qmail/bin/qmail-getpw
/var/lib/qmail/bin/qmail-inject
/var/lib/qmail/bin/qmail-local
/var/lib/qmail/bin/qmail-lspawn
/var/lib/qmail/bin/qmail-newmrh
/var/lib/qmail/bin/qmail-newu
/var/lib/qmail/bin/qmail-pop3d
/var/lib/qmail/bin/qmail-popup
/var/lib/qmail/bin/qmail-pw2u
/var/lib/qmail/bin/qmail-qmqpc
/var/lib/qmail/bin/qmail-qmqpd
/var/lib/qmail/bin/qmail-qmtpd
/var/lib/qmail/bin/qmail-qread
/var/lib/qmail/bin/qmail-qstat
/var/lib/qmail/bin/qmail-queue
/var/lib/qmail/bin/qmail-remote
/var/lib/qmail/bin/qmail-rspawn
/var/lib/qmail/bin/qmail-send
/var/lib/qmail/bin/qmail-showctl
/var/lib/qmail/bin/qmail-smtpd
/var/lib/qmail/bin/qmail-start
/var/lib/qmail/bin/qmail-tcpok
/var/lib/qmail/bin/qmail-tcpto
/var/lib/qmail/bin/qmail-verify
/var/lib/qmail/bin/qreceipt
/var/lib/qmail/bin/qsmhook
/var/lib/qmail/bin/sendmail
/var/lib/qmail/bin/splogger
/var/lib/qmail/bin/tcp-env
You may install this package on Debian with
apt-get
install qmail