What is React Email 4.0?
Announcing React Email 4.0. Built-in Linter, Spam Score, Compatibility Checker, Responsive Preview, and New Components
Problem
Users previously relied on manual coding and testing for email templates, which was time-consuming, error-prone, and lacked integrated tools for spam score analysis, compatibility checks, and responsive design validation.
Solution
React Email 4.0 is a developer-focused email template builder with built-in tools like a linter, spam score checker, compatibility checker, and responsive preview. Developers can create, test, and optimize email templates using React components while ensuring deliverability and cross-client consistency.
Customers
Front-end developers, email marketing teams, and SaaS product teams who prioritize scalable, maintainable email templates and need streamlined workflows for email development.
Unique Features
Combines React-based email component development with real-time spam scoring, linting, and multi-client compatibility checks in a single workflow.
User Comments
Saves hours debugging email client issues
Simplifies responsive email design
Critical for improving deliverability
Seamless integration with React projects
Open-source community support is a plus
Traction
Launched on ProductHunt (2023-09-26), part of the Resend ecosystem (raised $3M seed round in 2023), open-source GitHub repository with 13k+ stars, integrated into 4k+ projects.
Market Size
The global email marketing software market is valued at $10.6 billion in 2024 (Statista), with 60% of developers citing email template maintenance as a key pain point (2023 Postmark survey).
