In Mail on iCloud.com, click at the top of the Mailboxes list, then choose Settings.
Click Mail Forwarding, select “Forward my email to,” then type your Super email into forwarding address in the text field.
If you don’t want to store a copy of each forwarded email in iCloud, select “Delete messages after forwarding.”
Keep in mind that storing copies of forwarded emails decreases your available iCloud storage space.
You can also specify criteria so that only certain emails are forwarded. When you set up a rule to forward certain emails to another account, you can only use one forwarding address for each rule. See Set up rules to filter email in Mail on iCloud.com.