Sign in to your Gmail account and click on the gear icon at the top right corner. In the drop-down, you will find Settings option> click it. Now from the tabs at the top, select Accounts and Imports. Find Send mail as option and look for edit info link next to your email name. Click on it and in the window that appear, type in your new email name, select it and save changes. You can test this by sending an email To your alternate id. Contact us for all Gmail related issues on our toll-free Gmail helpline number .