An honest comparison to help you pick the right email tool in 2026.
| Feature | Mailjet | Postmark |
|---|---|---|
| Category | ||
| Free Tier | Yes | No |
| Paid Plan | $17/mo | $15/mo |
| Enterprise | Custom | Custom |
| Best For | Teams that want a collaborative template workflow and EU data residency alongside a solid email API | Developers who prioritize email deliverability and speed for critical transactional messages |
| Feature 1 | Transactional + marketing API | Fast delivery |
| Feature 2 | Collaborative template editor | Message streams |
| Feature 3 | EU data hosting | Inbound email |
| Feature 4 | Free tier | Templates |
| Feature 5 | Segmentation | Delivery analytics |
| Website | Mailjet | Postmark |
Mailjet and Postmark are both popular choices in the email category, but they serve different types of developers. Mailjet is transactional and marketing email API with real-time collaboration on templates and EU-based data hosting for GDPR-sensitive teams. Meanwhile, Postmark is transactional email service focused on deliverability and speed, with message streams and detailed delivery analytics.
One key difference is accessibility: Mailjet offers a free tier, while Postmark requires a paid plan starting at $15/mo. This makes Mailjet a better starting point for solo developers and small teams exploring email options.
Mailjet stands out with Transactional + marketing API and Collaborative template editor, while Postmark differentiates itself through Fast delivery and Message streams. The right choice depends on which capabilities matter most for your workflow. Ultimately, teams that want a collaborative template workflow and EU data residency alongside a solid email API, while Postmark is best for developers who prioritize email deliverability and speed for critical transactional messages.
Mailjet: Free tier available. Paid plans start at $17/mo. Enterprise pricing: Custom.
Postmark: No free tier. Paid plans start at $15/mo. Enterprise pricing: Custom.
Choose Mailjet if you value transactional + marketing api and collaborative template editor. Go with Postmark if developers who prioritize email deliverability and speed for critical transactional messages. Both are solid email options in 2026 — the best pick depends on your team size, budget, and technical requirements. We recommend trying both (especially if they have free tiers) before committing to one.
Not sold on either Mailjet or Postmark? Check out these other email tools:
See all Mailjet alternatives or Postmark alternatives.
Read more about email on our Apps page.
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