Our unique algorithm boosts your deliverability and our platform provides in-depth insight so you can optimize more than ever. Because 20% of emails never reach the inbox Mailjet is a logical choice! Get Ready – Create your free account, download our library and change your SMTP parameters. Start Sending – No warm up or manual validation process. Pay as you go and scale up or down. Cruise & Optimize – Leverage Mailjet’s analytics and integrate further with the API.