Email forwarding happens when you configure your email account to make a digital copy of your emails and forward it automatically to another account. The original copy stays in your Inbox, and the digital copy alone goes to the other email address where you send it. Email forwarding is the fast, simple, and best way to access multiple accounts in a single place. You can forward your mails from your AOL account on your Gmail account and even reply with your Gmail account. The recipient finds no difference; the mail will be sent as if it has been sent using the AOL account. If you want to know How to forward AOL mail to Gmail, follow the steps given below.