Build production-grade email template systems with React Email or MJML. Covers responsive layouts, dark mode, multi-provider sending (Resend, SendGrid, Postmark, SES), i18n, spam score optimization, preview servers, and analytics tracking. Use when setting up transactional email infrastructure, building email design systems, or debugging deliverability issues.
This skill does not declare a tool allowlist. The agent host applies whatever default tools are available at runtime.
SKILL.md / Manifest
https://raw.githubusercontent.com/borghei/claude-skills/main/marketing/email-template-builder/SKILL.mdRegistry
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