Send email developers love

Transactional and product email with an API your team wants to use, and deliverability you stop thinking about.

Product email stack

Individual products and alternatives (12)

Loops

Build the message

Loops is a modern email platform built for SaaS companies, providing transactional emails, marketing campaigns, and automated sequences with a developer-friendly API and clean interface.

Mailmodo

Build the message

Interactive email marketing platform enabling AMP emails with forms, surveys, carts, and calendars embedded directly inside the email body.

Stripo

Build the message

Email template design platform with drag-and-drop and HTML editors, enabling teams to build responsive emails and export to any ESP.

Knock

Route product events

Knock is a notification infrastructure platform that provides APIs for building and managing multi-channel notification systems across in-app, email, push, SMS, Slack, and other channels.

OneSignal

Route product events

OneSignal is a customer messaging platform specializing in push notifications, email, SMS, and in-app messaging, serving over a million developers and businesses with a generous free tier.

Courier

Route product events

Multi-channel notification infrastructure platform for product teams to design, route, and deliver notifications across email, push, SMS, and chat.

Resend

Deliver the email

Resend is a developer-first email API that provides reliable transactional email delivery with a modern SDK, React email components, and detailed analytics for web application teams.

Postmark

Deliver the email

Postmark is a transactional email service focused on fast, reliable delivery of application-generated emails like password resets, order confirmations, and notifications.

Mailgun

Deliver the email

Mailgun by Sinch is a transactional email API service for developers, providing email sending, receiving, validation, and deliverability optimization.

Mailtrap

Watch deliverability

Email delivery platform combining a testing sandbox for staging emails with a production sending API for transactional and bulk email delivery.

SMTP2GO

Watch deliverability

Global email delivery service with SMTP relay, email API, dedicated IPs, email testing tools, and comprehensive deliverability reporting.

SparkPost

Watch deliverability

Enterprise email delivery platform providing high-volume transactional and marketing email infrastructure with predictive analytics.