This package helps to setup dtc if you don't want even a single question to do the full setup.
after apt-get install dtc-autodeploy, simply type dtc_autodeploy -password- and this tiny package will setup ssh, mysql and dtc root with -password-, set debconf priority as non-interactive, install dtc and all it's dependencies with preset answers, then switch back debconf priority to medium. this is mostly useful if you want to do fully automated servers preset with dtc.
your server must have mx.example.com in /etc/hostname and /etc/hosts set correctly with mx.example.com and dtc.example.com in order to succeed.