Resend vs Postmark
Two developer-focused transactional email platforms with different philosophies. Resend bets on modern DX and the React Email ecosystem, while Postmark is built around deliverability and message streams.
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Resend and Postmark are both popular choices for transactional email. Resend is a newer, VC-backed platform built around React Email with a clean API. Postmark has been around longer and has earned a strong reputation for inbox delivery rates and 45-day log retention. This comparison breaks down the key differences to help you choose.
Resend
Resend is a modern email API built for developers. It offers a clean REST API, a React Email integration for building templates in code, and SDKs in multiple languages. Founded by the creator of React Email, Resend is VC-backed and growing fast.
Postmark
Postmark is a transactional email service known for fast delivery times and high inbox placement rates. It uses a "message streams" model to separate transactional and broadcast emails, and offers 45-day log retention out of the box.
What sets them apart
- Postmark retains email logs for 45 days. Resend keeps logs for only 3 days.
- Resend is built around the React Email ecosystem for code-based templates. Postmark uses its own template system with Mustachio syntax.
- Postmark separates transactional and broadcast emails using message streams. Resend does not enforce this separation.
- Resend is VC-backed with pricing that doubled at the 200k tier in October 2024. Postmark has had stable pricing for years.
- Postmark offers dedicated IP addresses on higher plans. Resend offers dedicated IPs on Scale plans.
Feature by feature
A side-by-side look at what each platform offers.
Resend
Postmark
Email Sending
Email Receiving
Observability
Security & Compliance
Developer Experience
Deliverability
Pricing Model
Last verified: 2026-03-24
Pricing comparison
What each platform costs at different volumes.
Resend offers a much larger free tier (3,000 vs 100 emails/mo). At 50k emails/mo, Resend is cheaper at $20 vs $50. At 100k, pricing converges. At higher volumes, Postmark moves to custom pricing while Resend publishes rates up to 2.5M emails/mo. Resend doubled pricing at the 200k tier in October 2024, which is worth factoring into long-term cost projections.
Prices as of 2026-03-24. Check each provider's website for the latest pricing.
Strengths and weaknesses
An honest look at what each platform does well and where it falls short.
Resend
- Modern developer experience with React Email integration
- Generous free plan with 3,000 emails per month
- Clean, well-documented REST API
- Scheduled sending support out of the box
- Lower pricing at the 50k emails/mo tier
- Only 3 days of log retention, making debugging difficult
- Uses Svix for webhook delivery (third-party dependency)
- VC-backed with pricing that already increased significantly
- No delivery time SLA or published delivery speed metrics
Postmark
- Industry-leading deliverability reputation and fast delivery times
- 45-day log retention for full visibility into email history
- Message streams enforce clean separation of email types
- SOC 2 compliant with first-party webhook delivery
- Stable, predictable pricing over many years
- Small free tier (100 emails/mo) makes it hard to evaluate
- No React Email integration or modern template tooling
- Higher price at the 50k/mo tier compared to Resend
- No scheduled sending feature
Which platform fits your needs?
Different teams have different requirements.
Choose Resend if you need
- Developers who want a modern DX with React Email templates
- Startups and side projects that benefit from a generous free plan
- Teams that need scheduled sending
- Projects where low upfront cost matters more than long-term retention
Choose Postmark if you need
- Teams where deliverability is the top priority
- Applications that need long log retention for debugging and compliance
- Organizations that require SOC 2 compliance
- Teams that want to enforce separation between transactional and marketing email
- Companies that value stable, long-term pricing
Consider Nuntly if you need
- Unified observability that combines API logs, email flow, delivery events, and webhooks in a single view with 30-day retention.
- A complete inbound email stack with inbox management, threading, and a Reply API.
- Predictable pricing from a bootstrap company. No VC-driven price increases.
- EU data hosting by default with GDPR compliance built in. Neither Resend nor Postmark offers European data residency.
3,000 emails/mo. No credit card required.
Frequently asked questions
Common questions about Resend vs Postmark.
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