Elastic Email

Elastic Email is a cost-effective, API-driven email service platform focused on both marketing and transactional sending. It offers a simple marketing automation builder, list management, and templates, but its strength is in its low-cost, high-volume sending via SMTP/API. Features include email validation and detailed tracking. With a generous free tier and pay-as-you-go pricing, it's ideal for developers, startups, and businesses sending high volumes of email on a tight budget who are comfortable with a more technical interface or integrating via API.