User "Ron" (among many others) posted this question to Ask Email Guy:
Can I have my email automatically forwarded to another email address?
Sure. In Web Mail click Preferences / Email Forwarding, and set the address there. All incoming messages will then have an exact unmodified copy automatically forwarded to the address you specify, and the original will be kept in your local mailbox unless you uncheck the option there to keep a copy. If you won't be checking the local mailbox at all, you may want to turn off the option to keep copies so that you don't fill up your storage quota.