Google is testing out a new feature that lets users change their Gmail username without creating a new account. The update keeps all data, services and subscriptions intact while allowing a fresh @gmail.

To create email groups in Gmail, go to Google Contacts, create a new label, and add contacts to it. When composing an email, type the label name in the “To” field to send the email to the entire group. If your job involves sending emails all in and out ...