Which service provides a scalable solution for sending and receiving email at a low cost?

Amazon Simple Email Service (SES) is specifically designed to provide a scalable solution for sending and receiving emails at a low cost, making it the ideal choice for this scenario. SES enables businesses to send bulk email communications, transactional emails, and marketing messages while ensuring high deliverability. Its pay-as-you-go pricing model allows organizations to manage their email communication efficiently without incurring significant costs.

SES is particularly well-suited for applications that require high-volume email sending capabilities, such as newsletters, promotional campaigns, and notifications. It integrates easily with other AWS services, enabling users to leverage existing AWS infrastructure for email management.

While Amazon Pinpoint is a service that focuses on targeted customer communication and analytics across multiple channels, including email, it is more complex and may involve additional features that go beyond simple email needs. AWS Batch is designed for running batch processing jobs and does not pertain to email services. AWS Amplify is a framework for building mobile and web applications, which includes functionality for hosting and authentication, but it is not dedicated to email solutions. Hence, Amazon SES stands out as the service that provides the efficient, scalable, and cost-effective email solution described in the question.