Mailgun Alternatives

Amazon SES

Freemium

Cheapest bulk email API — $0.10 per 1,000 emails

5.0 (268)

Amazon Simple Email Service is the cheapest bulk email option — $0.10 per 1,000 emails. EC2-hosted apps get 62,000 emails/month free. SMTP and API. Requires AWS account and setup effort.

Best for: AWS-based applications sending bulk email at scale who want the lowest per-email cost available

Loops

Freemium

Email platform built for SaaS companies

4.9 (240)

Loops is an email marketing platform built specifically for SaaS. Transactional + marketing in one, event-triggered sequences, and excellent React SDK. No more switching between Mailchimp and Postmark.

Best for: SaaS founders who want transactional and marketing email in one platform designed for product-led growth

Plunk

Freemium

Open source Transactional email — self-hostable

4.8 (93)

Plunk is an open source transactional email service you can self-host or use their cloud. Integrates with AWS SES for sending. Simple API and dashboard.

Best for: Developers wanting open source transactional email they can self-host using their own AWS SES account

Resend

Freemium

Email API for developers built by the Vercel team

4.6 (181)

Resend is a modern email API built by developers from the Vercel ecosystem. Clean SDK, React Email support for HTML templates, and 100 emails/day free. TypeScript-native.

Best for: Next.js and TypeScript developers who want the best developer experience for transactional email with React

Postmark

Freemium

Fastest transactional email delivery — inbox-focused

4.5 (398)

Postmark is a transactional email service with best-in-class inbox delivery rates. Focuses solely on transactional email (not marketing). Detailed bounce analytics, message streams, and server-side DKIM.

Best for: SaaS developers who need the most reliable transactional email delivery for password resets and notifications

Mailtrap

Freemium

Email sandbox for testing and staging

4.5 (197)

Mailtrap provides a fake SMTP server for testing emails in development and staging without sending to real users. Email Sending for production sending too. Free sandbox available.

Best for: Development teams who want to catch email bugs in staging without sending to real users

SendGrid

Freemium

Twilio's email API for developers at scale

4.3 (166)

SendGrid by Twilio handles both transactional and marketing email at massive scale. REST API, SMTP relay, webhook events, and dedicated IP warming. Used by Uber, Airbnb, and Spotify.

Best for: Developers building apps that send transactional and marketing email at scale via API

SMTP2GO

Freemium

SMTP relay with 99.99% uptime guarantee

4.2 (93)

SMTP2GO is an SMTP relay service with a 99.99% uptime guarantee. 1,000 free emails/month, detailed reporting, bounce management, and Australian-founded reliability focus.

Best for: Small businesses wanting a reliable SMTP relay with a strong uptime guarantee and generous free tier

MXRoute

From €45/mo

Affordable custom domain email hosting

4.0 (69)

MXRoute provides private email hosting for custom domains at very affordable lifetime pricing. Run email for your domains without using Google Workspace. Popular in budget hosting communities.

Best for: Developers and small teams wanting affordable private domain email without paying per-user Google Workspace fees

Mailcow

Free

Self-hosted email server with Docker

4.0 (391)

Mailcow is a free, open source email server suite running on Docker. Complete mail server with anti-spam, anti-virus, webmail, SOGo, and admin panel. Self-host on any VPS.

Best for: System administrators wanting a free, complete self-hosted email server with Docker-based deployment