How to Forward Yahoo Mail to Gmail Open Your Favorite Browser. Go to mail.yahoo.com Enter your User name and Password. Click Sign in to Login to Your Yahoo Account Click the Gear Icon in the Upper right corner of the page. Select Settings from the drop down menu. Click on the “Accounts” Menu. Now, Click on the “Edit” Button. Tick the box “forward mail to another e-mail address”. Save your settings. You will be asked to verify your Gmail address. To do so, open your Gmail and click on the link provided by Yahoo. From this time on every email sent to your Yahoo account will be automatically forwarded to Gmail. This is How You can Forward Yahoo Mail to Gmail.