Cpanel Email

 
Setting up a new mailbox in Cpanel
Enter Cpanel
Click mail icon, (top left, usually)
Click Manage/Add/Remove Accounts
Click Add Account

Forwarding emails to different account either on same server or elsewhere.
Enter Cpanel
Click mail icon, (top left, usually)
Click Forwarders
Click Add Forwarder, enter addresses, and click Add Forwarder again.
You should get a response similar to this:
All email sent to someone@mydomain.com will now be redirected to someone.else@anotherdomain.com 

Autoresponder on Cpanel