Mailgun logo

11 best Mailgun alternatives & competitors

The top Mailgun alternatives for transactional email, compared on price, free tier, ratings and what each is best for, with Mailgun pinned so you can measure each option against it.

Updated July 2026

About Mailgun

Mailgun logo

Mailgun

Email

Mailgun is a cloud-based email service that offers developers and businesses of all sizes a complete toolkit for sending, receiving, tracking and analyzing their email campaigns. Mailgun offers a wide range of features, including an SMTP server, DKIM signing, RESTful API, and plugins. It also allows you to use third party services like Mandrill, Salesforce, or Mailchimp without the hassle of setting up APIs and managing your own servers.

Best for

developers needing transactional and marketing email with strong deliverability and validation tooling, including an EU region

Starting price
$15/mo
Free tier
100/day
Rating
4.2 / 5
HIPAA
Yes

Company profile

Founded
2010
Headquarters
San Antonio, USA
Funding
Public-company unit
Team size
Not disclosed
Ownership
Part of Sinch
Reviews
4.2 / 5 on G2 (321)

Compliance

SOC 2 Type II
GDPR
ISO 27001
EU data residency
HIPAA BAA

Official SDKs

Python

Ruby

PHP

Java

Node.js

Go

Strengths

Mailgun is easy to set up.
It has extensive and well-documented APIs.
It has high throughput and offers quick email integration.
It has support for email marketing.

Why teams look elsewhere

Mailgun has spotty historical reliability.
Support has been poor since its acquisition.
Visit MailgunSet up Mailgun with Courier →

Side by side

Mailgun vs the alternatives

Sorted by rating · figures as of July 2026

Mailgun logo

Mailgun

You're viewing

Starting price

$15/mo

Free tier

100/day

Rating

4.2

Resend logo
Resend
Compare →

Starting price

$20/mo

Free tier

3,000/mo

Rating

4.8

Starting price

$19/mo

Free tier

10,000/mo

Rating

4.7

Starting price

$15/mo

Free tier

100/mo

Rating

4.6

Starting price

$9/mo

Free tier

300/day

Rating

4.5

Starting price

$49/mo

Free tier

4,000/mo

Rating

4.5

Starting price

$100/mo

Free tier

No

Rating

4.4

Starting price

Usage-based

Free tier

3,000/mo (1st yr)

Rating

4.3

Starting price

$20/mo

Free tier

No

Rating

4.2

Starting price

$19.95/mo

Free tier

Trial

Rating

4.0

Starting price

$15/mo

Free tier

1,000/mo

Rating

4.0

Starting price

$9/mo

Free tier

6,000/mo

Rating

3.9

ProviderStarting priceFree tierRating
Mailgun logo

Mailgun

You're viewing

$15/mo100/day4.2
Resend logo
Resend
$20/mo3,000/mo4.8Compare →
$19/mo10,000/mo4.7Compare →
$15/mo100/mo4.6Compare →
$9/mo300/day4.5Compare →
$49/mo4,000/mo4.5Compare →
$100/moNo4.4Compare →
Usage-based3,000/mo (1st yr)4.3Compare →
$20/moNo4.2Compare →
$19.95/moTrial4.0Compare →
$15/mo1,000/mo4.0Compare →
$9/mo6,000/mo3.9Compare →

At a glance

What each Mailgun alternative is best for

Resend

4.8 / 5

developer-first transactional and marketing email with native React Email integration for React and Next.js teams
OneSignal Email

4.7 / 5

teams already on OneSignal for push wanting a generous free email tier in the same platform
Postmark

4.6 / 5

transactional-only email senders wanting strong deliverability with streams that isolate transactional from broadcast traffic
Brevo

4.5 / 5

EU-based teams wanting GDPR-first email, SMS, WhatsApp, and CRM in one low-cost platform
Loops

4.5 / 5

SaaS teams wanting marketing, lifecycle, and transactional email bundled together with automated deliverability setup
Customer.io

4.4 / 5

data-driven lifecycle marketing teams needing deep behavioral segmentation and a visual workflow builder
AWS SES

4.3 / 5

AWS teams sending very high-volume transactional email cheaply without needing a template editor or campaign UI
Mandrill

4.2 / 5

teams already on a paid Mailchimp marketing plan wanting an integrated transactional email add-on
SendGrid

4.0 / 5

high-volume senders wanting a mature email API with dedicated IPs and detailed deliverability analytics
SparkPost

4.0 / 5

high-volume transactional email senders wanting deliverability-focused infrastructure and detailed analytics at large scale
Mailjet

3.9 / 5

European teams needing GDPR-certified email with EU-based data storage and a drag-and-drop campaign editor

FAQ

Common questions

The strongest Mailgun alternatives depend on what you need. Resend rates highest among the options here; the comparison table covers price, free tier, and rating, and the "what each alternative is best for" section matches each option to a use case.

Keep exploring

More transactional email alternatives guides

Resend alternativesOneSignal Email alternativesPostmark alternativesBrevo alternativesLoops alternativesCustomer.io alternativesAWS SES alternativesMandrill alternativesSendGrid alternativesSparkPost alternativesMailjet alternatives

One API, every provider

Switch or combine providers without rewrites.

Courier sits in front of Mailgun and every alternative above: route, fail over, and swap providers behind a single API.

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Company facts, pricing and compliance were verified against each provider's public pricing and security or trust pages, plus G2 and Trustpilot, as of July 2026, and compiled by the Courier team. Details change often, so confirm with the provider before you buy.

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