Amazon Simple Email Service (Amazon SES) is a cost-effective email service built on the reliable and scalable infrastructure that Amazon.com developed to serve its own customer base. With Amazon SES, you can send and receive email with no required minimum commitments – you pay as you go, and you only pay for what you use.
Mailgun provides a web service for integrating email inboxes into apps. Providing APIs for sending, receiving, and storing APis, including tools for managing delivery, real-time integration, organizing, routing, and tracking on emails. Malign provides a free trial to learn about services, and pay as you go, unit based pricing to continue from there, including volume pricing for increased usage.