how to run a program as a daemon

[David Banning]

I am running tmda-ofmipd for my smtp server and occasionally
it dies. I wonder how I could set it up to run so that if it
dies for some reason, it will start up again. Right now, it 
starts in my rc.local like so;

/usr/local/bin/tmda-ofmipd  -R imap://localhost -u tofmipd

The only way I can think of doing it is to set up a crontab
entry to a program that would check if it is still running, 
and if it is not, then have it start it again. 

I was hoping there is an easier way, maybe by putting it in inetd.conf
or something...

--