Managing email preferences
You can add or change the email addresses associated with your account on GitHub.com. You can also manage emails you receive from GitHub Enterprise Cloud.
Adding an email address to your GitHub account
GitHub Enterprise Cloud allows you to add as many email addresses to your account as you like. If you set an email address in your local Git configuration, you will need to add it to your account settings in order to connect your commits to your account. For more information about your email address and commits, see "Setting your commit email address."