The Best Mailgun Alternatives in 2026
Tolodora Editorial Team
Independent software reviews for founders and small businesses.
Quick answer
The best Mailgun alternatives in 2026 are Resend, Postmark and SendGrid. Resend is our top overall pick, best for developers who want the best modern email-sending experience. See the full ranked comparison below.
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Mailgun is a long-standing, developer-focused email API, but teams compare it for a few reasons: pricing that can feel steep or confusing at certain volumes, a wish for a more modern developer experience, concerns about deliverability support, or simply wanting to send marketing email from the same tool. Depending on whether you prioritise DX, deliverability, price or breadth, there's a Mailgun alternative that fits.
Here are six Mailgun alternatives worth a look in 2026, ranked on value, developer experience, deliverability and features. One's the modern developer favourite, one's the reliability specialist, and others cover marketing email or rock-bottom cloud pricing. More in email.
Email-API pricing is usually based on volume (emails sent per month) and changes often, so model your real sending volume against each provider's live pricing before committing. Ratings are our own editorial calls to help you compare.
| Tool | Starts at | Free plan | Best for |
|---|---|---|---|
| Resend | Free; paid from ~$20/mo | Yes | Developers who want the best modern email-sending experience |
| Postmark | Paid plans; free trial | No (free trial) | Teams that care most about transactional deliverability and speed |
| SendGrid | Free; paid plans available | Yes | Teams that want one proven platform for transactional and marketing email |
| Amazon SES | Usage-based (very low) | Pay-as-you-go | Cost-sensitive teams sending at high volume (especially on AWS) |
| Brevo | Free; from ~$9/mo | Yes (generous) | Businesses that want transactional plus marketing and CRM |
| SMTP2GO | Free; affordable paid plans | Yes | Teams that want simple, reliable sending without complexity |
| Tool | Value | Support | Ease of use | Features | Overall | Best for |
|---|---|---|---|---|---|---|
| Resend | 9.0 | 8.0 | 10.0 | 8.0 | 8.8 | Developers who want the best modern email-sending experience |
| Postmark | 8.0 | 9.0 | 9.0 | 8.0 | 8.5 | Teams that care most about transactional deliverability and speed |
| Brevo | 9.0 | 8.0 | 9.0 | 8.0 | 8.5 | Businesses that want transactional plus marketing and CRM |
| SMTP2GO | 9.0 | 9.0 | 9.0 | 7.0 | 8.5 | Teams that want simple, reliable sending without complexity |
| SendGrid | 7.0 | 7.0 | 8.0 | 9.0 | 7.8 | Teams that want one proven platform for transactional and marketing email |
| Amazon SES | 10.0 | 6.0 | 6.0 | 8.0 | 7.5 | Cost-sensitive teams sending at high volume (especially on AWS) |
| # | Tool | Best for | Rating |
|---|---|---|---|
| 1 | Resend | Developers who want the best modern email-sending experience | 4.4/5 |
| 2 | Postmark | Teams that care most about transactional deliverability and speed | 4.3/5 |
| 3 | SendGrid | Teams that want one proven platform for transactional and marketing email | 3.9/5 |
| 4 | Amazon SES | Cost-sensitive teams sending at high volume (especially on AWS) | 3.8/5 |
| 5 | Brevo | Businesses that want transactional plus marketing and CRM | 4.3/5 |
| 6 | SMTP2GO | Teams that want simple, reliable sending without complexity | 4.3/5 |
Resend
- Pricing
- 9.0/10
- Functionality
- 8.0/10
- Ease of use
- 10.0/10
- Support
- 8.0/10
What I like
The modern, developer-first email API — clean SDKs, React Email and lovely DX.
Best for
Developers who want the best modern email-sending experience
Resend is the modern developer darling, and often the first Mailgun alternative teams try today. It offers a clean, well-documented API, first-class SDKs, and tight integration with React Email for building templates in code, so adding transactional email to a modern app (especially React/Next.js) is genuinely pleasant. It focuses on good deliverability, webhooks and a nice dashboard, with a free tier and straightforward pricing that many find simpler than Mailgun's. It's younger, so its ecosystem is still maturing. But for developers who want the slickest, most contemporary way to send transactional email, Resend is the standout, and a refreshing change from Mailgun's more utilitarian feel. See our <a href="/alternatives/resend-alternatives">Resend alternatives</a> too.
Postmark
- Pricing
- 8.0/10
- Functionality
- 8.0/10
- Ease of use
- 9.0/10
- Support
- 9.0/10
What I like
The deliverability specialist — famously fast, reliable transactional email.
Best for
Teams that care most about transactional deliverability and speed
Postmark is the deliverability and reliability specialist, and a strong Mailgun alternative when getting transactional email to the inbox, fast, is your top priority. It's built specifically for transactional email, deliberately keeping transactional and bulk streams separate to protect reputation, with a reputation for quick delivery, excellent support and clear, detailed analytics. For a team sending important emails (receipts, password resets, notifications) that absolutely must arrive promptly, that focus pays off. It's more transactional-focused than marketing-oriented, and pricing is per-volume. But for teams that prioritise rock-solid transactional deliverability and speed over breadth, Postmark is one of the most trusted Mailgun alternatives. See our <a href="/alternatives/postmark-alternatives">Postmark alternatives</a> too.
SendGrid
- Pricing
- 7.0/10
- Functionality
- 9.0/10
- Ease of use
- 8.0/10
- Support
- 7.0/10
What I like
The established giant for both transactional and marketing email at scale.
Best for
Teams that want one proven platform for transactional and marketing email
SendGrid (part of Twilio) is the established heavyweight, handling both transactional and marketing email at massive scale. It offers a robust API, template management, detailed analytics, dedicated IPs and the infrastructure to send billions of emails reliably. Crucially, unlike Mailgun's transactional focus, it also does marketing campaigns, so you can run both from one platform. There's a free tier and volume-based pricing. Its deliverability and support get mixed reviews versus specialists like Postmark, and the breadth adds some complexity. But for a team that wants one proven, scalable provider for both transactional and marketing email, SendGrid is a dependable Mailgun alternative. See our <a href="/alternatives/sendgrid-alternatives">SendGrid alternatives</a> too.
Amazon SES
- Pricing
- 10.0/10
- Functionality
- 8.0/10
- Ease of use
- 6.0/10
- Support
- 6.0/10
What I like
Rock-bottom pricing for high-volume sending, backed by AWS infrastructure.
Best for
Cost-sensitive teams sending at high volume (especially on AWS)
Amazon SES is the cheapest way to send email at scale by a wide margin, which makes it the obvious Mailgun alternative for cost-sensitive, high-volume senders. Backed by AWS, it offers reliable, pay-as-you-go sending at a fraction of the per-email cost of most providers, with deliverability tools and tight integration into the rest of AWS. For a team already on AWS, or anyone whose priority is minimising per-email cost, it's hard to beat on price. The trade-offs are real: it's barebones (you build more yourself), the dashboard and analytics are thin, and support and deliverability handholding are limited. But for cheap, scalable raw sending, especially on AWS, SES is the budget Mailgun alternative.
Brevo
- Pricing
- 9.0/10
- Functionality
- 8.0/10
- Ease of use
- 9.0/10
- Support
- 8.0/10
What I like
Transactional email plus a full marketing suite and CRM, at friendly prices.
Best for
Businesses that want transactional plus marketing and CRM
Brevo (formerly Sendinblue) is the all-in-one value pick, offering a transactional email API alongside a full marketing suite, campaigns, automation, a CRM, SMS and more, at friendly prices. For a small business or startup that wants to send both product (transactional) email and marketing email, and manage contacts, without paying for separate specialist tools, that breadth and value are the appeal. It has a generous free tier and solid deliverability. It's less of a pure, dev-first transactional specialist than Mailgun or Postmark. But for a business that wants transactional plus marketing and CRM in one affordable tool rather than a developer-only email API, Brevo is a versatile Mailgun alternative. See our <a href="/alternatives/brevo-alternatives">Brevo alternatives</a> too.
SMTP2GO
- Pricing
- 9.0/10
- Functionality
- 7.0/10
- Ease of use
- 9.0/10
- Support
- 9.0/10
What I like
A reliable, no-fuss SMTP/API sending service with great support and a free tier.
Best for
Teams that want simple, reliable sending without complexity
SMTP2GO is the straightforward, reliable pick, and a refreshingly no-fuss Mailgun alternative. It focuses on doing one thing well, delivering your email reliably via SMTP or API, with global sending infrastructure, good deliverability tools, reporting and a reputation for genuinely helpful support. There's a free tier for low volumes and affordable, transparent paid plans. For a team (or a smaller business or agency) that wants dependable email sending without the complexity or cost of a big platform, that simplicity and support are the appeal. It's less feature-dense than Mailgun or SendGrid for advanced use. But for simple, reliable, well-supported email delivery at a fair price, SMTP2GO is a solid, under-rated Mailgun alternative worth considering.
The verdict
For the best modern developer experience, Resend leads; Postmark is the pick when transactional deliverability and speed matter most. SendGrid is the proven giant that also does marketing, Amazon SES is unbeatable on raw cost at volume, Brevo adds a full marketing suite and CRM, and SMTP2GO is the simple, reliable, well-supported option. Match it to whether you want great DX, deliverability, scale, low cost, or marketing-plus-transactional.
Whatever you shortlist, run your real work through it for a week before committing — the right tool is the one that quietly disappears and lets you get back to it. And if you build software like this yourself, you can list it on Tolodora free.
Frequently asked questions
What's the best modern alternative to Mailgun?
Resend is the modern developer favourite, with clean SDKs, React Email integration and a lovely developer experience, and simpler pricing than many find Mailgun's. For modern app teams (especially React/Next.js), it's the first choice.
Which Mailgun alternative has the best deliverability?
Postmark has a strong reputation for transactional deliverability, keeping transactional and bulk streams separate to protect reputation and deliver quickly. Resend and SendGrid also deliver well with proper setup (SPF/DKIM/DMARC). For transactional-first reliability, Postmark is the specialist.
What's the cheapest Mailgun alternative?
Amazon SES is by far the cheapest for high-volume sending, though it's barebones and support-light. For a cheaper option with a nicer experience, SMTP2GO (with a free tier) or Brevo (generous free tier) are good starting points. Always model your sending volume, since pricing is usage-based.
Which alternative does marketing email too?
SendGrid and Brevo both handle transactional and marketing email in one place, unlike Mailgun's transactional focus. SendGrid is the proven giant; Brevo is the affordable all-in-one with a CRM and SMS. If you want to send campaigns as well as transactional email, start with one of those.
Why do teams switch from Mailgun?
Usually for a more modern developer experience (Resend), stronger transactional deliverability (Postmark), the ability to send marketing email too (SendGrid, Brevo), lower cost at volume (Amazon SES), or simpler, well-supported sending (SMTP2GO). The best fit depends on DX, deliverability, price and whether you also need marketing email.
Sources & further reading
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