Guides
Task-focused guides for Tailwind, subject lines, plain text, testing, preview, and email-client compatibility.
These guides go beyond the per-component reference to cover common authoring tasks end to end.
Using Tailwind
Inline utilities, nested-component support, and documented limitations.
Subject lines
Compute a subject from props with defineEmail.
Plain text
How the text fallback is produced and how to control it.
Testing your emails
Render and assert with the scoped package testing utilities.
Preview workflow
Use /__email and stay within the Gmail clipping budget.
Client compatibility
The manual QA checklist and what is proven.