Setting up a forwarder
To setup a forwarder email address which lets you forward incoming emails to another email address, click the "Mail Forwards" icon
In the next page, click the "Add Mail forward" tab on the top
Enter the email address (under your domain) that you wish to forward and then the email address to which you want the emails to be forwarded.
Click the "Add" button to create the mail forwarder address.
Note: Mail forwards are virtual email addresses, where mail coming to the address is directly forwarded to the address/script specified here. Please note that a mail account is not created at all, and thus no mail gets stored on the server. If you want to store mails too, you have to create a proper mailaccount and then add forwards from inside it. The Forward To can be a mail address, which would mean that mails coming to the address is transparently sent to it.