Install cron entries
Run all these commands from the command line and verify their proper functionality (no complaints or errors).
Once it runs without errors, add it to cron.
crontab -u root -e */5 * * * * /usr/local/bin/toaster-watcher.pl
Note: The path to toaster-watcher.pl is the default location for perl scripts (bin) on your OS distribution. It is typically /usr/local/bin, /usr/local/sbin, or /opt/local/[s]bin, and sometimes, just plain /usr/[s]bin. Adjust accordingly.
Congratulations, your Mail::Toaster is now installed!
If you haven't already, now is a great time to do some testing.