Streamline your emailing and boost your sales with Mailjet. We serve all your email and SMS needs with one simple and powerful service. Mailjet is an easy-to-use all-in-one e-mail platform. With our transactional and marketing e-mail solution, it’s never been easier to get your emails into the inbox! Mailjet is Europe’s leading e-mail solution, with over 100,000 customers in 150 countries.