12 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 developer-focused email API for transactional and marketing mail, with a deliverability and validation suite and an EU region in Frankfurt. The catch is inconsistent deliverability and support quality across reviews, and short log retention on lower tiers.

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 (322)

Compliance

SOC 2 Type IIGDPRISO 27001EU data residencyHIPAA BAA

Official SDKs

PythonRubyPHPJavaNode.jsGo
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.

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

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

$7/mo

Free tier

500/mo

Rating

4.1

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

4.0

ProviderStarting priceFree tierRating
Mailgun logo

Mailgun

You're viewing

$15/mo100/day4.2
$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 →
$7/mo500/mo4.1Compare →
$19.95/moTrial4.0Compare →
$15/mo1,000/mo4.0Compare →
$9/mo6,000/mo4.0Compare →

At a glance

What each Mailgun alternative is best for

Resend

4.8 / 5

Resend is a developer-first email API for React and Next.js teams. The catch is no HIPAA BAA, US-only data storage, and reports of abrupt account suspensions.
OneSignal Email

4.7 / 5

OneSignal Email offers a generous free tier within its multichannel push platform. The catch is email is secondary to its core push product and less mature than specialists.
Postmark

4.6 / 5

Postmark is a transactional email service with strong deliverability and streams that isolate message types. The catch is no marketing focus, no HIPAA BAA, and US-only data storage.
Brevo

4.5 / 5

Brevo is a GDPR-first, EU-based platform bundling email, SMS, WhatsApp, and CRM. The catch is it is not a purpose-built transactional provider, with strict anti-abuse suspensions.
Loops

4.5 / 5

Loops bundles marketing, lifecycle, and transactional email for SaaS teams with automated deliverability setup. The catch is a young company with no SOC 2, HIPAA, or EU data residency.
Customer.io

4.4 / 5

Customer.io is a lifecycle messaging platform with deep behavioral segmentation and a visual workflow builder. The catch is a steep learning curve and profile-based pricing that climbs with your audience.
AWS SES

4.3 / 5

Amazon SES sends high-volume email through AWS at among the lowest costs at scale. The catch is a bare-bones service with no template editor, campaign UI, or analytics.
Mandrill

4.2 / 5

Mandrill is a transactional email add-on tightly integrated with the Mailchimp ecosystem. The catch is it requires a paid Mailchimp plan and will not sign a BAA.
MailerSend

4.1 / 5

MailerSend is a developer-focused transactional email and SMS API from the MailerLite team, with EU-hosted data by default, a real free tier, and built-in email verification. The catch is no formal SOC 2 Type II or HIPAA, and reports of accounts suspended over bounce-rate triggers.
SendGrid

4.0 / 5

SendGrid is a high-volume email API with dedicated IPs, deliverability tooling, and detailed analytics. The catch is support: slow responses and occasional account suspensions, reflected in a low Trustpilot score.
SparkPost

4.0 / 5

SparkPost (now Bird) is a high-volume email API with strong deliverability and analytics. The catch is no HIPAA BAA and poor reviews since the 2023 Bird rebrand.
Mailjet

4.0 / 5

Mailjet is a GDPR-certified email service with EU data storage and a drag-and-drop editor. The catch is a 200-per-day free cap and reports of inconsistent deliverability.

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.

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.

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.