VS
Mailgun vs Postmark
Two transactional email providers, compared on price, features and ratings — so you can pick fast.
Updated July 2026
The verdict
Both are developer-grade transactional ESPs starting at $15/mo. Mailgun is the more flexible infrastructure play — usage-based pricing, EU data residency, ISO 27001, and a HIPAA BAA — built to scale and handle regulated sends. Postmark is the deliverability-and-speed specialist, with 45-day log history and a strong support reputation, but it's US-only, won't sign a BAA, and skips marketing features.
By the numbers
How do Mailgun and Postmark compare?
Leader highlighted · figures as of July 2026
Entry price · @ 1,000/mo
$0.80
Mailgun
$10
Postmark
Price at scale · @ 50,000/mo
$35
Mailgun
$50
Postmark
Free tier
100/day
Mailgun
100/mo
Postmark
G2 rating · out of 5
4.5
Mailgun
4.6
Postmark
Trustpilot · out of 5
4.3
Mailgun
3.8
Postmark
Drag-and-drop editor · visual builder
No
Mailgun
No
Postmark
Scorecard
Feature by feature, how do they stack up?
| Capability | | |
|---|---|---|
| Pricing | ||
| Starting paid plan | $15/mo | $15/mo |
| Cost per 1k @ 100k | $0.9 | $1.26 |
| Pricing model | Hybrid | Subscription |
| Overage | from $1.10 / 1,000 emails | $1.20–$1.80 per 1,000 by plan |
| Deliverability | ||
| Dedicated IP | Plan-gated | Add-on |
| Deliverability tooling | Yes | Yes |
| Automated IP warmup | Yes | No |
| Suppression management | Yes | Yes |
| SPF / DKIM / DMARC | Yes | Yes |
| API & sending | ||
| Transactional API | Yes | Yes |
| Marketing campaigns | — | No |
| SMTP relay | Yes | Yes |
| Inbound routing | Yes | Yes |
| Dynamic templates | Yes | Yes |
| Batch send | Yes | Yes |
| Scheduled send | Yes | No |
| Developer experience | ||
| Official SDKs | Python, Ruby, PHP, Java, Node.js, Go | .NET, Java, Node.js, PHP, Python, Ruby, Rails |
| Event webhooks | Yes | Yes |
| Drag-and-drop editor | Yes | No |
| Custom HTML editor | Yes | Yes |
| Email validation | Add-on | No |
| Log retention | 1-30 days | 45 days |
| Sandbox / test mode | Yes | Yes |
| Analytics | ||
| Open / click tracking | Yes | Yes |
| Analytics dashboard | Yes | Yes |
| A/B testing | Yes | No |
| Compliance | ||
| EU data residency | Yes | No |
| SOC 2 | Yes | No |
| HIPAA | BAA | No |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | No |
| Support | ||
| Support channels | Email/ticket, Chat, Phone | Email, Chat |
| 24/7 support | — | No |
| Support SLA | Plan-gated | No |
Decision helper
Which should you choose?
Pick Mailgun
Pick Postmark
FAQ
Common questions
Postmark is specifically known for fast transactional delivery and a clean sending reputation; Mailgun offers more deliverability tooling and controls at scale.
Keep comparing
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Why not both?
Use both behind one API.
Route Mailgun, Postmark, or both — and switch providers without changing your code. Courier sits in front of every channel.
Pricing, plans and feature availability as of July 2026 and may change. Ratings are aggregated from public review platforms. Mailgun is a Sinch product; Postmark is an ActiveCampaign product.
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