> ## Documentation Index
> Fetch the complete documentation index at: https://deepline.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Smartlead: Get Delivery Reply Headers

> Get the email headers of a reply from a Smartlead inbox placement test. Includes SDK V2 guidance, input constraints, response fields, and Deepline credit cost.

Get the email headers of a reply from a Smartlead inbox placement test.

> [!NOTE]
>
> Tool ID: `smartlead_get_delivery_reply_headers`

## Run this action

Use the TypeScript SDK for one call. Use `ctx.tools.execute(...)` inside a Play for durable calls, scheduled calls, or CSV processing.

```ts theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
import { Deepline } from 'deepline';

const deepline = await Deepline.connect();
const result = await deepline.tools.execute(
  'smartlead_get_delivery_reply_headers',
  {
    "test_id": "test_123",
    "reply_id": "reply_123"
  },
);

console.log(result.toolResponse.raw);
```

### CLI

```bash theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
deepline tools execute smartlead_get_delivery_reply_headers --input '{
  "test_id": "test_123",
  "reply_id": "reply_123"
}' --json
```

## Example response

The static output schema lacks the details for a reliable example. Use `deepline describe smartlead_get_delivery_reply_headers --json` for the complete live contract.

## Input reference

Smartlead get delivery reply headers input.

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `payload.test_id` | `string \| integer` | Yes | — | Spam test identifier. |
| `payload.reply_id` | `string \| integer` | Yes | — | Reply identifier within the spam test report. |

<details>
  <summary>Show raw input schema</summary>

  ### Input JSON Schema

  ```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
  {
    "type": "object",
    "description": "Smartlead get delivery reply headers input.",
    "properties": {
      "test_id": {
        "description": "Spam test identifier.",
        "anyOf": [
          {
            "type": "string",
            "minLength": 1
          },
          {
            "type": "integer",
            "minimum": 1
          }
        ]
      },
      "reply_id": {
        "description": "Reply identifier within the spam test report.",
        "anyOf": [
          {
            "type": "string",
            "minLength": 1
          },
          {
            "type": "integer",
            "minimum": 1
          }
        ]
      }
    },
    "required": [
      "test_id",
      "reply_id"
    ],
    "additionalProperties": false
  }
  ```
</details>

## Output reference

Raw Smartlead delivery reply headers payload.

The static output schema is not available. Run `deepline describe smartlead_get_delivery_reply_headers --json` for the live contract.

<details>
  <summary>Show raw output schema</summary>

  ### Output JSON Schema

  ```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
  {
    "description": "Raw Smartlead delivery reply headers payload."
  }
  ```
</details>

## Deepline cost

* Pricing model: `fixed` (per call).
* Estimated Deepline credits: `0` per pricing unit.
* Provider-native pricing may still exist outside Deepline credit billing.

## Related documentation

* [SDK V2 quickstart](https://deepline.com/docs/sdk-v2/quickstart.md)
* [SDK reference](https://deepline.com/docs/sdk-v2/sdk-reference.md)
* [Run tools across a CSV](https://deepline.com/docs/sdk-v2/batch-csv.md)


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