Guides
Task-focused guides for authoring, previewing, testing, and sending transactional email.
These guides go beyond the per-component reference to cover common authoring tasks end to end.
Preview workflow
Use /__email and inspect the exact HTML, text, and subject.
Sending email
Hand rendered HTML, text, and subject to a provider or local SMTP server.
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.
Client compatibility
The manual QA checklist and what is proven.