Build, test, and send transactional emails at scale. Resend provides the best developer experience helping you reach users instead of spam folders.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)



Postmark is described as 'Fast and reliable transactional email service. Send with Postmark to ensure your transactional emails get to the inbox on time, every time' and is a Email Marketing service in the business & commerce category. There are more than 50 alternatives to Postmark for a variety of platforms, including Web-based, SaaS, Self-Hosted, Windows and Linux apps. The best Postmark alternative is Mailchimp, which is free. Other great apps like Postmark are Brevo, Mailgun, Sendgrid and SENDER.
Build, test, and send transactional emails at scale. Resend provides the best developer experience helping you reach users instead of spam folders.



A group list is a great way to manage users in a select team or group on your domain. Send to up to 200 recipients for free. For example, suppose that you have a billing team you want to group together - bob@domain.com, amy@domain.com, and scott@domain.com.




Harness the power of multichannel marketing with CRM and AI insights, integrating email, SMS, and push notifications. Unify data for personalized B2C engagement, enhance customer experiences through real-time personalization, and foster brand loyalty with robust analytics and automation.


Easy-to-use, email marketing and automation for fast growing businesses. Send group email campaigns, automated messages and targeted newsletters with ease.





A new kind of transactional messaging service designed for developers to work faster and smarter with a powerful infrastructure to scale quickly.




Yournotify is an email and sms marketing platform for customer engagement. We help brands build better customer communication and engagement with our easy to use marketing platform to grow their business.


Emailit is a versatile email sending platform catering to both marketers and developers. It offers flexible sending options through SMTP integration and a REST API, ensuring seamless integration with existing applications and software.


Mailhardener is a email monitoring suite used to improve email security and solve delivery issues. If your email is being flagged as spam, or if you have a fraud sensitive business, we can help you to solve that.




JangoSMTP lets you send transactional emails via SMTP or API. It's the first transactional email service to offer open and click tracking.




Kingmailer offers transactional SMTP, which lets you send, receive and route emails. Best use case is for SaaS, Forums and e-Commerce sites. It's ideal for sending email notifications. You get a clean IP address and Kingmailer offers 99% inbox rate.




All in one email delivery platform that includes an SMTP Relay, API, and a full suite of tools via the browser based UI.