sending particular alert message to particular users

Hello, This is how my hobbit-client.cfg and hobbit-alerts.cfg look and I would like to send the first LOG to some users and the second LOG to different users. How do I send an alert based on a warning expression?

Hobbit-client.cfg HOST=myhost.org LOG /var/log/messages %failure*|%failed*|%error*|%Warning* COLOR=red LOG /var/log/www_server_4881.log %exceeded* COLOR=red

Hobbit-alerts.cfg HOST=myhost.org MAIL user at something.org SERVICE=msgs REPEAT=30m COLOR=red RECOVERED

Any help, suggestion will be appreciated

Thanks, Camelia Anghel canghel at cjh.org