Merchant Mail automatically looks up Stripe customers based on the sender of the email you are reading. If there are no customers with a matching email address, you'll be given the option to create a new customer.
Click on Create Customer and enter the customer details. We automatically fill in the name and address based on the email you are reading.
Click the Save button to create a new Stripe customer.
You can also create a customer at any time, though the More Actions menu.