<a href=\"%1$s\" target=\"_blank\" rel=\"noopener noreferrer\">SendGrid</a> is a popular transactional email provider that sends more than 35 billion emails every month. If you're just starting out, the free plan allows you to send up to 100 emails each day without entering your credit card details.<br><br>To get started, read our <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">SendGrid documentation</a>.