If you just want emails forwarded from certain senders or subjects, here's how to do so in seven simple steps.
1. From any open Gmail page, select the Settings link.
2. Click the Forwarding and POP/IMAP tab.
3. Select the creating a filter link next to Tip: at the bottom of the page.
4. Choose the criteria to be used to sort and forward messages (ex: if you want all messages from John Doe forwarded, enter John Doe in the From: field.
5. Select Next Step.
6. Check the box next to Forward it to: and enter the desired forwarding email address.
7. Select Create Filter.
If you decide at any time in the future that you no longer want or need to forward your Gmail messages, return to the Settings link and the Forwarding and POP/IMAP tab and select the radio button next to Disable Forwarding. To delete or change a filter, return to the Settings link and the Filters tab. Choose the filter to delete and select remove.