Search for MAIL-ON-WARNING, then add an email address. api@netway.ezyadmin.com
#!/bin/sh
(
/usr/local/bin/rkhunter --versioncheck
/usr/local/bin/rkhunter --update
/usr/local/bin/rkhunter --cronjob --report-warnings-only
) | /bin/mail -s 'rkhunter Daily Run (server.systemnetway.com)' api@netway.ezyadmin.com