Unblocking someone on Gmail is simple. On a PC, go to Gmail’s Filter and Blocked Addresses settings to see a list of blocked emails, where you can unblock one or more addresses. In the Gmail app, ...

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 ...