Postmark
Reliable, fast email API for transactional messages
What is Postmark?
Try PostmarkPostmark is an email delivery service built for fast, reliable transactional messaging. It provides an email API (and SMTP service) so teams can send things like password resets, notifications, and order-related emails with strong deliverability. Postmark also separates promotional and transactional traffic to help protect inbox placement for your most important messages.
What does Postmark do for transactional email delivery?
Postmark helps you send transactional emails with fast, reliable delivery so you can stop worrying about whether messages reached the inbox. It’s built for essential communications like password resets, notifications, and other transactional updates, with deliverability-focused practices and dedicated infrastructure for that message type.
Can I start sending quickly without coding?
If you’re using Postmark through the provided API tools, you can typically get started in minutes. Postmark is designed to fit into common tech stacks, with API libraries for many programming languages and clear documentation, plus migration guides if you’re switching from another provider.
How does Postmark keep promotional and transactional emails from interfering with each other?
Postmark uses Message Streams to keep promotional and transactional messages separate. Promotional content like newsletters is routed through a parallel but separate sending infrastructure, helping protect deliverability for your transactional emails so they arrive quickly.
What’s included for analytics, tracking, and engagement measurement?
Postmark includes Analytics & Retention to help you measure email performance and recipient engagement. It also supports webhooks so you can connect email events to your own workflows and systems.
How does Postmark handle security and sender deliverability?
Postmark focuses on deliverability by vetting new senders and helping you follow best practices. It’s also designed to prevent spammers from using the service, and it includes security-related capabilities alongside features like Rebound for delivery-related handling.
How do I migrate to Postmark from another email provider?
Postmark provides migration guides to help you switch from other platforms. The guides cover moving transactional email off providers like SendGrid, Mailgun, Amazon SES, SparkPost, Mailchimp Transactional, and Resend.