Back
Mailgun vs Postmark
Trust Score comparison · March 2026
Signal Comparison
180k / wknpm downloads200k / wk
~20 commitsCommits (90d)20 commits
1.4k ★GitHub stars500 ★
12k q'sStack Overflow5k q's
MatureCommunityEstablished
MailgunPostmark
Key Differences
| Factor | Mailgun | Postmark |
|---|---|---|
| License | Proprietary | Proprietary |
| Language | TypeScript / Python | TypeScript / Python |
| Hosted | Yes | Yes |
| Free tier | — | — |
| Open Source | — | — |
| TypeScript | — | ✓ |
Pick Mailgun if…
- You need high-volume transactional email (100k+/mo)
- You want built-in email validation API to reduce bounces
- You need inbound email parsing (webhooks on received emails)
Pick Postmark if…
- Critical transactional email needing best deliverability
- You've had deliverability issues with other providers
- Simple, reliable email without marketing features
Side-by-side Quick Start
Mailgun
npm install mailgun.jsPostmark
import { ServerClient } from 'postmark';
const client = new ServerClient(process.env.POSTMARK_API_TOKEN);
await client.sendEmail({
From: 'noreply@myapp.com',
To: 'user@example.com',
Subject: 'Your receipt',
HtmlBody: '<p>Thank you for your purchase!</p>',
MessageStream: 'outbound',
});Community Verdict
Based on upvoted notes🏆
Mailgun wins this comparison
Trust Score 78 vs 54 · 24-point difference
Mailgun leads on Trust Score with stronger signal data across downloads and community health. That said, the other tool is worth considering if your use case matches its specific strengths above.