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Dev.to
6/18/2026
Stop Hand-Coding HTML Emails: JSX Templates, Multi-Provider Sending, One TypeScript Library

Stop Hand-Coding HTML Emails: JSX Templates, Multi-Provider Sending, One TypeScript Library

Short summary

This TypeScript library replaces hand-coded HTML email templates with JSX components, automates Outlook-safe markup, dark mode, CSS inlining, and plain-text fallback rendering via React SSR. It abstracts email providers (Resend, SES, SMTP, SendGrid, Postmark, Mailpit) behind one send() interface, enabling single-line provider switches and failover strategies. Type-safe props and theme context prevent common bugs.

  • JSX email templates with server-side rendering, auto-inlined CSS, dark mode, and plain-text fallback
  • Multi-provider abstraction (Resend, SES, SMTP, SendGrid, Postmark) with one-line swaps and failover support
  • Type-safe template props caught at build time and theme context for consistent rebranding

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