<a href="%1$s" target="_blank" rel="noopener noreferrer">Mailgun</a> is a transactional email provider that offers a generous 3-month free trial. After that, it offers a 'Pay As You Grow' plan that allows you to pay for what you use without committing to a fixed monthly rate.<br><br>To get started, read our <a href="%2$s" target="_blank" rel="noopener noreferrer">Mailgun documentation</a>.