God help you if you have Plesk.

But, if you do an you need to receive the system messages emailed to root, simply execute these commands as root on your RHEL server:

# echo `hostname` >> /var/qmail/control/locals
# /etc/init.d/qmail restart

After this, log into the CP, and click Server->Edit. Change the Administrator Email to the address you want root’s mail sent to, and voila! it goes.

This will also work for postmaster and mailer-daemon.

/cs