How can I change my e-mail address?
If I use Gmail with my account, it’s not currently possible to change my Gmail username after I’ve registered. I can, however, create another Google Account with a different Gmail username. I can’t change the email address on your account to an email address that’s already associated with a Google Account.
Changing email addresses can be a frustrating experience. Since most email services don’t allow you to change your email address, you’ll need to create an all-new account and then migrate your information over. By setting up proper forwarding and informing people of the change, you can make the process much easier on your sanity. After making the switch, keep your old account active for a while to ensure that you receive every important message and don’t get locked out of any online accounts.
Here’s how to do it:
Open Gmail and click the gear icon.
Select the “Forwarding and POP/IMAP” tab.
Click on “Add a forwarding address”
Enter your new email address.
You’ll get a verification email at your new email address, click that verification link.