1. Compose a new email in Gmail and set the To field to firstname.lastname@example.org.
2. Type anything you wish for the Subject and Message.
3. Click the main GMass button. Do not click the Gmail Send button.
4. You’ll then get a link at the top of your screen to change your credit card. Click that link. You’ll be taken to a web page with a button to enter your new credit card.
Ajay is the founder of GMass and has been developing email sending software for 20 years.