Click the Settings (gear) icon, and then click Preferences:
Click Forwarding, and then in the Forward Emails OUT section, click Add:
In the Forward emails to text box, type the destination Gmail address:
To keep a copy of forwarded messages in your inbox, click Yes. Otherwise, click No.
Click Next. You should receive a message with a confirmation code at the Gmail account. Type the confirmation code in the text box, and then click Start forwarding:
If you do not receive the code at your Gmail account, click Resend.
Email forwarding to Gmail is now configured. To disable forwarding to Gmail at any time, click Stop forwarding.