The Postmark alternative built for modern teams
Postmark is famous for speed and deliverability. Sendbound matches that speed, adds React Email support, marketing broadcasts, and is up to 90% cheaper at scale.
Built for a better email experience
Postmark only does transactional
Postmark forces you to use another tool for marketing emails and newsletters. Sendbound is a unified platform — you get Postmark-level deliverability for transactional emails, plus powerful broadcast tools for marketing.
No React Email support
Postmark has a proprietary template language. Sendbound embraces the open source standard: React Email. Build your templates with components, not obscure template tags.
More generous free tier
Postmark gives you 100 emails a month for free. Sendbound gives you 3,000. Start building your product without worrying about hitting a paywall on day two.
Modern AI tools built in
Sendbound includes AI generation tools that understand deliverability rules. Generate variants, fix layout issues, and optimize subject lines right in the dashboard.
What you actually pay at scale
See full pricing →| Plan | Volume | Sendbound |  Postmark | You save |
|---|---|---|---|---|
| Free | 3,000 / mo | $0 | $0 (100 only) | 30× more free |
| Starter | 50,000 / mo | $15 | $50 | 70% less |
| Growth | 100,000 / mo | $39 | $100 | 61% less |
| Scale | 1,000,000 / mo | $329 | Custom | More features |
Prices shown are list price at time of writing. Sendbound free tier: 3,000 emails/month included, no credit card required.
Compare the essentials
| Feature | Sendbound | Postmark |
|---|---|---|
| React Email native support | ||
| TypeScript SDK (first-class) | ||
| Free tier (emails/month) | 3,000 | 100 |
| API latency (p50) | 23ms | 60ms |
| DMARC + BIMI wizard | ||
| Real-time blocklist monitoring | ||
| Automatic DKIM rotation | ||
| MCP server (AI agents) | ||
| AI subject line optimizer | ||
| Marketing broadcasts | ||
| Automated sequences | ||
| Per-domain analytics | ||
| Dedicated IP options | ||
| Time to inbox | < 1s | < 1s |
Move from Postmark in four steps
Avg time: < 1 hourVerify your domain
Add your sending domain. We walk you through DNS, DKIM, and SPF and verify automatically.
Install the SDK
One command. TypeScript types and IntelliSense included out of the box.
Swap the API call
Change your import and key. The REST API is intentionally familiar.
Go live
We monitor your first send live and stay on call. Lists, webhooks, and templates come with you.
Developers who made the switch
I loved Postmark's speed, but hated maintaining a separate Mailchimp account for our newsletter. Sendbound gave us the best of both worlds in one beautiful dashboard.
Writing emails in React instead of Postmark's custom syntax changed everything. We now share UI components between our web app and our emails.
Common questions about switching from Postmark
Ready to leave Postmark behind?
Migrate in under an hour. Step-by-step guide included, and our team is on call for your first send.