# Resend queues

## Queue producer

```ts
import { enqueueEmail } from '@workermailer/resend/queue';

await enqueueEmail(env.EMAIL_QUEUE, {
  mailerOptions: {
    apiKey: env.RESEND_API_KEY,
    from: env.RESEND_FROM
  },
  emailOptions: {
    from: 'Acme Alerts <alerts@acme.com>',
    to: 'alice@example.com',
    subject: 'Queued Resend delivery',
    text: 'This send came from Cloudflare Queues.'
  }
});
```

## Queue consumer

```ts
import { createQueueHandler } from '@workermailer/resend/queue';

const handler = createQueueHandler({
  onSuccess: (result) => console.log('Delivered', result.emailOptions.subject),
  onError: (result) => console.error('Failed', result.error)
});

export default {
  async queue(batch: MessageBatch<any>) {
    return handler(batch);
  }
};
```

## Behavior

- successful sends call `message.ack()`
- failed sends call `message.retry()`
- each result keeps the original `emailOptions` for downstream logging

## Recommended use

Use queues when delivery should happen in the background or when you want retries owned by Cloudflare Queues instead of the request handler.