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Mailgun

Freemium#1 of 32 in Email APIsTransactional Email Software SMTP Relay Services Email Testing Software

Mailgun: A mature email API with broad sending, inbound routing, tracking, and deliverability tools. Ranked #1 of 32 in Email APIs by our editors (9.7/10); pricing: Free plan · 30-day trial; best for developers wanting a mature full email API.

9.7/10Editor score

Visit Mailgun

Mailgun9.7 Visit Mailgun

At a glance

Editor score
9.7 / 10
Pricing
Free plan · 30-day trial
Best for
Developers wanting a mature full email API
Free plan
Yes
Inbound email
Yes
Founded
2010 · San Antonio, Texas, United States
Facts checked
16 Sep 2026

Where it wins
- RESTful API, SMTP relay, inbound routing, and delivery webhooks
- Templates, analytics, logs, validation, and suppression management
- Dedicated IP pools, SAML SSO, and live support on Scale
Where it doesn't
- Paid-plan pricing varies by tier and is not summarized here
- Advanced features are concentrated in higher plans
- Broader deliverability tooling may exceed simple sending needs

Our verdict on Mailgun

Mailgun is an email delivery platform for developers, marketers, and product teams. It supports transactional and marketing messages through RESTful email APIs and SMTP relay, with inbound email routing, delivery-event webhooks, templates, analytics, logs, suppression management, and email validation. Its web and API availability suits teams building email delivery into applications or managing email operations through a developer-focused platform.

The plan structure starts with Free, which includes 100 emails per day, one custom sending domain, tracking, analytics, webhooks, and one inbound route. A 30-day trial is also available. Basic raises capacity to 10,000 emails per month with no daily email limit and five inbound routes. Foundation adds 50,000 emails per month, a template builder and API, full access to inbound routing, and five days of log retention. Scale includes 100,000 emails per month, dedicated IP pools, SAML SSO, 30 days of log retention, and live phone and chat support. The published plans therefore make Mailgun suitable for teams whose needs grow from core API delivery into templates, routing, retention, identity, and support.

Mailgun’s strongest fit is a product team that needs more than outbound sending. Reusable templates, delivery metrics, event webhooks, bounce and complaint suppression, dedicated IP options, email validation, inbox placement testing, and reputation monitoring cover a broad email operations workflow. The tradeoff is that some of the more advanced capabilities appear in the higher tiers, while a simple application sending occasional messages may not need the full feature set. Choose Mailgun for a broad developer email platform with inbound and deliverability requirements; choose a narrower service when basic outbound delivery is the main need.

Your product? Our editors can test Mailgun in depth and publish a review, labelled as paid · from $149/mo →

Mailgun pricing

Plans Free plan · 30-day trialFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 16 Sep 2026.

See plans on mailgun.com

All 4 Mailgun plans and prices →

Mailgun fact sheet

Free plan	Yes
Paid from	Not verified
Monthly send limit	10000 /mo
Inbound email	Yes
Delivery event webhooks	Yes
SMTP relay	Yes
Email templates	Yes
Dedicated IP option	Yes
Free trial	30 days
Deployment	Cloud
Platforms	Web
Pricing	Free plan · 30-day trial (source)
Website	mailgun.com
Facts checked	16 Sep 2026

Alternatives to Mailgun

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Mailgun vs the competition

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Also Ranked In

Mailgun is ranked in 4 of our directories.

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Mailgun for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

Mailgun is listed in our Email APIs directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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Last updated 28 Sep 2026 · How we research and update