How to change your name in e-mail account
You may want to change your name in your e-mail account, so that only your first name is displayed for privacy reasons, or use a completely different name just for fun.
When you signed up for a new Web e-mail account, you probably filled out your account profile and entered your real name. When you send e-mails with that account, your real name is displayed in the field of the e-mail header.
But you can change your name if needed. All three of the major Web e-mail providers (Gmail, Yahoo Mail, and Outlook.com) offer a way to change your name.
Gmail
Step 1: Click on the gear icon, then select Settings
Step 2: Click on the Accounts tab, then under the Send mail as: section, click on the "edit info" link.
Step 3: Enter a new name in the box and make sure the radio button for the new name is selected. Click on the Save Changes button to save.
Yahoo Mail
Step 1: Click on the gear icon, then select Settings
Step 2: Go to the Account tab, then under the Yahoo account section, click on the Edit button.
Step 3: Enter a new name in the Sending Name box, then click Save. Click Save again to save your new settings.
Outlook.com
Step 1: Click on the gear icon, then select More mail settings Step 2: Under Managing your account, click on Account details. Step 3: When your Account summary shows up, click on the "Edit display name" link under your name.
Step 4: Enter a new first and last name, then click Save. Unlike Gmail and Yahoo Mail, Outlook.com requires a first and last name.