> ## Documentation Index
> Fetch the complete documentation index at: https://resend.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Send emails with Deno Deploy
> Learn how to send your first email using Deno Deploy.
## Prerequisites
Before you start, you'll need:
* A Resend [API key](/create-an-api-key)
* A [verified domain](/add-a-domain)
## 1. Create a Deno Deploy project
Go to [dash.deno.com/projects](https://dash.deno.com/projects) and create a new playground project.
## 2. Edit the handler function
Paste the following code into the browser editor:
```ts main.ts theme={"theme":{"light":"github-light","dark":"vesper"}}
import { Resend } from 'npm:resend';
const resend = new Resend('re_123456789');
Deno.serve(async () => {
try {
const response = await resend.emails.send({
from: 'Acme ',
to: ['delivered@resend.dev'],
subject: 'Hello World',
html: 'It works!',
});
return new Response(JSON.stringify(response), {
status: response.error ? 500 : 200,
headers: {
'Content-Type': 'application/json',
},
});
} catch (error) {
console.error(error);
return new Response(null, {
status: 500,
});
}
});
```
## 3. Deploy and send email
Click on `Save & Deploy` at the top of the screen.
## 4. Try it yourself
See the full source code.