Mailer

lettreRust

A Rust library for sending emails with multiple transport methods, SMTP security, and async support.

Symfony MailerPHP

A flexible PHP component for sending emails with support for multiple transports and Twig template integration.

swooshElixir

A comprehensive Elixir library for composing, delivering, and testing emails with support for multiple adapters.

StampiePHP

A PHP library providing a unified API wrapper for multiple email service providers like Postmark and SendGrid.

MailerPython

A self-hostable micro-service that adds contact form functionality to static websites via a simple API.