'Form Notifications SMTP' add-on can produce "unlimited" professional confirmation and notification emails per day for Google Forms. The emails could be sent via SMTP Advantages of free version: - Send from vefified email addresses. - Full support standard HTML. - Sending condition: sends or not based on the user's answers. - 'SMTP sending' feature help produces "unlimited" emails per day. - Attach email content as a pdf file (non SMTP sending mode).