/usr/bin/collectaddys
/usr/bin/printcdb
/usr/bin/printdbm
/usr/bin/tmda-address
/usr/bin/tmda-check-address
/usr/bin/tmda-filter
/usr/bin/tmda-inject
/usr/bin/tmda-keygen
/usr/bin/tmda-ofmipd
/usr/bin/tmda-pending
/usr/bin/tmda-rfilter
/usr/bin/tmda-sendmail
You may install this package on CentOS with
yum
install tmda