---
title: Email
description: How email templates work in kreogen
product: Email
type: reference
summary: How the email preview application works.
related:
  - /en/docs/packages/email
---

# Email



<Callout>
  The `email` application runs on port 3003.
</Callout>

kreogen comes with [`react.email`](https://react.email/) built in, allowing you to create and send beautiful emails using React and TypeScript.

`react.email` has a preview server, so you can preview the emails templates in the browser.

To preview the emails templates, simply run the `email` app:

```sh title="Terminal"
bun dev --filter email
```


---

For a semantic overview of all documentation, see [/sitemap.md](/sitemap.md)

For an index of all available documentation, see [/llms.txt](/llms.txt)