Mailgun vs Resend
Mailgun and Resend are both popular choices in the transactional email service space. Mailgun has been around since 2010, giving it a 13-year head start over Resend (founded 2023). Mailgun is the more affordable option at $15/mo — that's $5 less per month than Resend's $20/mo entry point. Both offer free plans to get started. Mailgun has the edge with advanced analytics.
Quick Verdict
Mailgun wins on price, integrations.
Resend wins on deliverability.
Best for most users: Mailgun (developers).
Mailgun
Developer-focused transactional email API by Sinch
Mailgun is a Sinch-owned transactional email API platform founded in 2010, designed for developers who need reliable, high-volume email delivery via REST API or SMTP. It offers email validation, inbox placement testing, and send-time optimization, making it a solid choice for SaaS companies and engineering teams building custom email workflows.
Resend
Modern email API for developers with React Email and TypeScript-first SDK
Resend is a modern, developer-first email API founded in 2023 by Zeno Rocha, backed by Y Combinator. It stands out with its React Email framework that lets developers build email templates using React components, TypeScript-first SDKs across 11+ languages, and a clean API design that feels native to modern web development stacks.
Feature Comparison
| Feature | Mailgun | Resend |
|---|---|---|
| Rating | 4.2/5 | 4.2/5 |
| Starting Price | $15/mo | $20/mo |
| Free Plan | 100 emails/day (~3,000/month), 1 domain, 1-day logs | 3,000 emails/month, 100 emails/day, 1 custom domain |
| Founded | 2010 | 2023 |
| Email Templates | 25 | 0 |
| Integrations | 40 | 15 |
| Deliverability Rate | 97% | 98% |
| Marketing Automation | ✕ | ✕ |
| A/B Testing | ✕ | ✕ |
| Landing Pages | ✕ | ✕ |
| Segmentation | ✕ | ✕ |
| Drag & Drop Editor | ✕ | ✕ |
| SMS Marketing | ✕ | ✕ |
| Ecommerce Features | ✕ | ✕ |
| API Access | ✓ | ✓ |
| Multi-Language | ✕ | ✕ |
| Web Push Notifications | ✕ | ✕ |
| Live Chat | ✕ | ✕ |
| Advanced Analytics | ✓ | ✕ |
Mailgun: Pros & Cons
Pros
- +Powerful RESTful API with well-structured SDKs for Python, Ruby, Node.js and more, making integration painless for developers
- +Real-time dashboards for delivery, bounce, spam complaints, and click rates provide clear campaign health visibility
- +Handles very high email volumes reliably with strong deliverability and fast sending speeds
- +Built-in email validation and inbox placement testing tools (Mailgun Optimize) for deliverability optimization
- +Flexible routing rules, webhooks, and event tracking simplify debugging and monitoring email performance
Cons
- −Pricing escalates quickly at higher volumes and premium features like dedicated IPs ($59/mo) and validations cost extra
- −No built-in drag-and-drop email editor or marketing automation features — purely developer-focused
- −Setup requires technical knowledge; non-developers will struggle with DNS configuration and API integration
- −UI dashboard feels outdated in certain sections compared to modern competitors like Resend
- −Lower-tier plans use shared IP addresses which can impact deliverability if other senders have poor practices
Resend: Pros & Cons
Pros
- +Best-in-class developer experience with official SDKs for Node.js, Python, Ruby, Go, Java, Rust, PHP, .NET, and Elixir
- +React Email integration lets developers build email templates using React components and JSX instead of raw HTML
- +Generous free tier with 3,000 emails/month — significantly more than Postmark's 100 or Mailgun's daily-capped plan
- +Clean, modern dashboard and API design that feels native to modern developer workflows and toolchains
- +Fast setup — most developers can send their first email within minutes thanks to clear documentation and simple API
Cons
- −Relatively new platform (founded 2023) with a smaller track record and fewer enterprise references than established competitors
- −Some users report occasional sending delays, with confirmation messages taking over a minute to arrive per G2 reviews
- −No marketing email features — no automation, A/B testing, segmentation, or list management capabilities
- −Limited pre-built templates; you must build your own with React Email or HTML from scratch
- −No public affiliate program and limited enterprise compliance certifications (no HIPAA, limited EU data residency options)
The Verdict
Mailgun and Resend are closely matched — both score within 0.0 points of each other in our overall rating. Your decision should come down to specific needs rather than overall quality. On deliverability, Resend reports 98% compared to 97% for Mailgun — a meaningful difference if inbox placement is critical for your campaigns.
| Criterion | Weight | Mailgun | Resend |
|---|---|---|---|
| Starting Price | 30% | $15/mo | $20/mo |
| Deliverability | 25% | 97% | 98% |
| Rating | 25% | 4.2/5 | 4.2/5 |
| Integrations | 10% | 40 | 15 |
| Free Tier | 10% | Yes | Yes |
Weights determine how much each criterion counts toward the final score. See full methodology
Choose Mailgun if…
- + You want lower starting costs ($15/mo)
- + You need advanced analytics
- + You're a developers
- + You're a saas companies
Choose Resend if…
- + You're a modern web developers
- + You're a react nextjs teams
- + Best-in-class developer experience with official SDKs for Node.js, Python, Ruby, Go, Java, Rust, PHP, .NET, and Elixir