*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh local mail.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh incoming mail.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh outgoing mail.example.com

*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh local mail2.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh incoming mail2.example.com
*/5 * * * * root /usr/local/bin/check_email_send_delivery.sh outgoing mail2.example.com