send mail using crontab

I'm having troubles using the mail command in a script which is run by a cron job. The script can be run manually and the mail is delivered, howvever if I run the script via cron, the mail doesn't hit the queue at all.

The script runs via root's crontab and I have tried putting explicit pathnames into the commands but still nothing. I've also added the environment variable declaration with MAIL=/var/mail/root and that hasn't worked either.

Is there anything I'm missing?

[500 byte] By [keith_salter] at [2007-11-26 9:41:18]