Mailgun vs Postmark: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Mailgun and Postmark side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Postmark leads on higher user rating and lower entry price. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Mailgun
Send, parse, and validate emails with a reliable developer API
Best for you if:
- • You want powerful API
Postmark
Reliable, fast transactional email delivery for developers
Best for you if:
- • You want sub-second delivery times significantly faster than most competitors
| At a Glance | Mailgun | Postmark |
|---|---|---|
Starts at | Free plan, paid from $35/mo, billed monthly Foundation plan | Free plan, paid from $15/mo Basic plan |
Category | Email API Tools | Email API Tools |
Rating | 4.1/5 Trustpilot 4.1 · G2 4.2 1,850 reviews | 4.7/5 Capterra 4.7 · G2 4.6 67 reviews |
Free plan | Yes | Yes |
Watch out for | High overage fees on lower tiers | DMARC monitoring is a paid add-on: $14/month per domain. Many competitors include basic DMARC reporting for free. |
Choose Mailgun or Postmark?
Choose Mailgun if
- You want powerful API
- You want email validation
Choose Postmark if
- You want sub-second delivery times significantly faster than most competitors
- You want message streams separate transactional from promotional to protect deliverability
- Budget matters ($15/mo vs $35/mo, billed monthly)
In-Depth Analysis
Mailgun
Send, parse, and validate emails with a reliable developer API
Mailgun's pricing is competitive, especially for developers needing high volume.
Watch out
High overage fees on lower tiers
Strengths
- Pro: Powerful API
- Pro: Email validation
- Pro: Good logs
Weaknesses
- Con: Complex pricing
- Con: Support can be slow
Key features
Postmark
Reliable, fast transactional email delivery for developers
Postmark has built its entire reputation on one thing: deliverability.
Watch out
DMARC monitoring is a paid add-on: $14/month per domain. Many competitors include basic DMARC reporting for free.
Strengths
- Pro: Sub-second delivery times significantly faster than most competitors
- Pro: Message streams separate transactional from promotional to protect deliverability
- Pro: Premium support included on all plans at no extra cost
- Pro: Generous free tier with 100 emails per month that never expires
- Pro: Clean developer-focused API with SDKs for all major languages
Weaknesses
- Con: Not designed for marketing or newsletter campaigns
- Con: Dedicated IPs require minimum 300,000 emails per month
- Con: Free plan limited to 100 emails which is very low for production use
- Con: Overage pricing can add up quickly at scale without pre-purchasing volume
- Con: No built-in drag-and-drop email builder for non-technical users
Key features
Plans and prices: Mailgun vs Postmark
| Tool | Plans and prices | Source |
|---|---|---|
| Mailgun |
| mailgun.com/pricing read Oct 31, 2026 |
| Postmark |
| postmarkapp.com/pricing read Nov 1, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Mailgun pricing and Postmark pricing.
Key Takeaways
Mailgun
- Choose if you want send, parse, and validate emails with a reliable developer API
Postmark
- Higher user rating: 4.7/5 vs 4.1/5
- Lower entry price: $15/mo vs $35/mo, billed monthly
What the data shows
On the data below, Postmark leads on higher user rating and lower entry price. We do not name an overall winner for this pair.
- Postmark has the higher user rating (4.1/5 from 1,850 reviews for Mailgun, 4.7/5 from 67 reviews for Postmark).
- Postmark has the lower entry price: $15/mo (Basic) against $35/mo, billed monthly (Foundation) for Mailgun.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Mailgun and Postmark compare in 2026?
On the data below, Postmark leads on higher user rating and lower entry price. We do not name an overall winner for this pair. Postmark has the higher user rating (4.1/5 from 1,850 reviews for Mailgun, 4.7/5 from 67 reviews for Postmark). Postmark has the lower entry price: $15/mo (Basic) against $35/mo, billed monthly (Foundation) for Mailgun. Both have a free plan.
What are Mailgun and Postmark used for?
Mailgun: Send, parse, and validate emails with a reliable developer API. Postmark: Reliable, fast transactional email delivery for developers.
What does Mailgun cost vs Postmark?
Mailgun's cheapest paid plan is Foundation at $35/mo, billed monthly; it also has a free plan. Postmark's cheapest paid plan is Basic at $15/mo; it also has a free plan. Prices read on the vendors' pricing pages, latest check Nov 1, 2026.
What's the main difference between Mailgun and Postmark?
Mailgun's main strength: powerful API. Postmark's main strength: sub-second delivery times significantly faster than most competitors.