Mailgun vs Postmark: Which Should You Choose in 2026?
Choosing between Mailgun and Postmark comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Mailgun
Email API for developers
Best for you if:
- • You want to try before committing
- • You need email deliverability features specifically
- • Mailgun is an email API service for developers sending transactional email
- • It handles email delivery, validation, and tracking at scale
Postmark
Transactional email service
Best for you if:
- • You want the higher-rated option (8.8/10 vs 8.4/10)
- • You need api tools features specifically
- • Transactional email service
- • Industry-leading deliverability
| At a Glance |  Mailgun |  Postmark |
|---|---|---|
Price | Free + Paid | Paid |
Best For | Email Deliverability | API Tools |
Rating | 84/100 | 88/100 |
| Feature | Mailgun | Postmark |
|---|---|---|
| Pricing Model | Freemium | Paid |
| Editorial Score | 84 | 88 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Email DeliverabilityEmail Verification | API ToolsEmail Deliverability |
How Mailgun and Postmark Compare
Mailgun
Email API for developers
Free tier available · 84/100 score
Postmark
Transactional email service
Paid · 88/100 score
Mailgun is a email deliverability tool. Postmark is in api tools.
Who Should Use What?
On a budget?
Mailgun has a free tier. Postmark is paid only.
Go with: Mailgun
Want the highest-rated option?
Mailgun: 84/100. Postmark: 88/100.
Go with: Postmark
Value user reviews?
Neither has user reviews yet.
Go with: Postmark
3 Questions to Help You Decide
What's your budget?
Mailgun is freemium. Postmark is paid. Mailgun lets you start free.
What's your use case?
Mailgun is a email deliverability tool. Postmark is in api tools. Pick the category that matches your needs.
How important are ratings?
Postmark scores higher: 88/100 vs 84/100.
Key Takeaways
Postmark
- Higher score: 88/100 vs 84
- Our pick for this comparison
Mailgun
- Has a free tier
- Better fit for email deliverability
The Bottom Line
Postmark (88/100) is our pick. Mailgun has a free tier if you want to test without paying.
Frequently Asked Questions
Is Mailgun or Postmark better?
Postmark scores 88/100 in our evaluation. Mailgun is freemium and Postmark is paid.
What are Mailgun and Postmark used for?
Mailgun: Email API for developers. Postmark: Transactional email service.
What does Mailgun cost vs Postmark?
Mailgun is freemium (free tier + paid plans). Postmark is a paid tool. Visit their websites for detailed pricing.