Enable automatic email forwarding in New Yahoo Mail
Upgrade to Yahoo Mail Plus or subscribe to Access + Forwarding to use the email forwarding feature in your Settings. Automatic forwarding sends a copy of incoming messages from your Yahoo Mail account to another email address.?
? Not available in all locales - If the option isn't listed in your account, it's not available at this time.
- Click the More options icon
| select Settings 
. - Click Mailboxes.
- Under "Mailbox list," click the primary mailbox account.
- Under "Auto-forwarding," enter the forwarding address.
- Click Verify.
- Sign in to the email account you've chosen to forward your messages to and follow the instructions sent there.