Email Delivery

Postmark is an email delivery service that provides an API and SMTP interface for sending transactional and marketing emails. It is used by developers and businesses to programmatically send email messages.

Loops is an email platform that enables software companies to create and send marketing, product, and transactional emails, and offers API and CLI tools for integration.

Resend is an email service that lets developers send transactional and marketing emails via an API, SDKs, or SMTP. It is used by companies and developers to programmatically deliver and manage email communications.