- login to cpanel using email account and password

- list will appear to you ,choose services

- list of services will appear to you ,choose the service you want to control

- list of actions will appear ,choose login to cpanel

- list of emails will appear ,choose forwarders as in the following image

- choose the Domain then click on (add forwarders),as in the following image

- Write the name of the email you want to send a copy from it as in the following image

- Write the name of the email you want to receive a copy to it as in the following image

- after that click on (add forwarder) as in the following image
