Step 1: Login to your cPanel account.
Step 2: In the "Email" Section of your cPanel, click on "Forwarders" and then click on "Add Forwarders".
Step 3: On the "Add a New Forwarder" page you will see the "Address to forward:" field. If you want to forward your myemail@example.com to your custom e-mail address, enter "myemail" (without the quotes) in the "Address to forward" field, and should you have multiple domains, select the appropriate one from the domain drop-down list.
Step 4: From the "Destination" field select "Forward to email address" and enter your custom e-mail address on which you want to receive forwarded emails.
Final Step: Click on the "Add Forwarder" Button.
How to forward email to a mail pipe script/program?
1. If you want to forward your email to an e-mail pipe script like myemailpipe.php, which is located on your public html folder like "/home/username/public_html/myemailpipe.php", follow Step 2 and Step 3.
2. In the "Destination" field click on "Advanced Options" to expand them, select "Pipe to a Program" and enter the full path of your custom email pipe script such as "home/username/public_html/myemailpipe.php" (Without the quotes, and you may have noticed that we do not use a slash at the beginning of the url.)
3. Click on the "Add Forwarder" Button.