Before starting, first login to cPanel ( Guide here )

Step 1 − Open Email Forwarders by clicking on the link of Forwarders found in cPanel Home.

Step 2 − In the Forwarders Interface, you will find Add Fowarder, or Add Domain fowarder.

Step 3 − Press Add Forwarder Button, it will take you to a similar interface like this.

Example : Your want to foward emails from tutorials@hostkoala.com to hostkoala@gmail.com

Address to foward : tutorials

Domain : hostkoala.com

Foward to email address : hostkoala@gmail.com

Step 4 − Click Add Forwarder to save the changes you made.

Once completed, you will be greeted with a prompt saying that it was succesful like below