Using an alternate email address to sign in to Gmail
You can use one of your alternate email addresses to sign in to Gmail.
If you want Gmail with your account, just visit the Gmail homepage and click Create an account link under the sign-in box.
To add Gmail to your existing account, be sure to click If you already have a Google Account, you can sign in here, and follow the instructions to add the product to your account.
Kaley is on the Accounts support team and author of this help page. Please leave suggestions below on how to improve her article.