12 best MailerSend alternatives & competitors

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

Updated August 2026

About MailerSend

MailerSend logo

MailerSend

Email

MailerSend is a developer-focused transactional email and SMS API built by the MailerLite team and now part of Vercom, offering a developer API, SMTP relay, drag-and-drop templates, and EU-hosted data by default. The catch is no formal SOC 2 Type II certification or HIPAA BAA, dedicated IPs gated to higher tiers, and Trustpilot reports of accounts suspended over bounce-rate triggers.

Best for

budget-friendly transactional email and SMS API for developers who want EU-hosted data and a generous free tier

Starting price
$7/mo
Free tier
500/mo
Rating
4.1 / 5
HIPAA
No

Company profile

Founded
2020
Headquarters
New York, USA
Funding
Not disclosed
Team size
~7
Ownership
Subsidiary of Vercom S.A.
Reviews
4.1 / 5 on G2 (46)

Compliance

GDPREU data residencyNo HIPAA BAA

Official SDKs

PHPLaravelNode.jsGoPythonRubyJava
Strengths
EU data residency by default (infrastructure hosted in Belgium), unlike competitors that only offer an EU sending region
Generous free tier at 500 emails/mo plus built-in email verification credits
Managed dedicated IP warmup handled by MailerSend's deliverability team for qualifying senders
Backed by an established, profitable parent company (Vercom S.A. via MailerLite) rather than early-stage venture funding
Native inbound email routing with webhook delivery and sender/domain/header filters
Why teams look elsewhere
No formal SOC 2 Type II certification, only described as SOC 2-aligned practices
No HIPAA compliance or BAA offered, a poor fit for healthcare/PHI workloads
Trustpilot reviews include recurring complaints of accounts suspended over bounce-rate or policy triggers with no refund
Dedicated IPs are gated to Starter plan and above and require roughly 500,000 emails/mo to qualify

Side by side

MailerSend vs the alternatives

Sorted by rating · figures as of August 2026

MailerSend logo

MailerSend

You're viewing

Starting price

$7/mo

Free tier

500/mo

Rating

4.1

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

$15/mo

Free tier

100/day

Rating

4.2

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

4.0

ProviderStarting priceFree tierRating
MailerSend logo

MailerSend

You're viewing

$7/mo500/mo4.1
$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 →
$15/mo100/day4.2Compare →
$20/moNo4.2Compare →
$19.95/moTrial4.0Compare →
$15/mo1,000/mo4.0Compare →
$9/mo6,000/mo4.0Compare →

At a glance

What each MailerSend 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.
Mailgun

4.2 / 5

Mailgun is a developer email API with strong deliverability and validation tooling and an EU region. The catch is inconsistent deliverability and support quality across reviews.
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.
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 MailerSend 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 MailerSend 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 August 2026, and compiled by the Courier team. Details change often, so confirm with the provider before you buy.