Convert logs from TAI format to UTC:
cat /var/log/qmail/qmail-send/current.log | tai64nlocal
Installing qmail on Ubuntu 14.04 will install daemontools as well.
The init script for upstart is going to be located at /etc/init/svscan.conf. After the package is installed, Ubuntu will not start the service. It will start by default on next boot. You must do it manually:
start svscan