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

# List Attachments

`outlook_list_attachments`

Lists all attachments on an Outlook message — file attachments, linked files, and attached items. Returns the name, type, size, and ID for each attachment. Use `outlook_get_attachment` with an attachment ID to retrieve the actual file content.

## Parameters

| Parameter         | Type   | Required | Description                                                       |
| ----------------- | ------ | -------- | ----------------------------------------------------------------- |
| `message_id`      | string | Yes      | Message ID from `outlook_list_messages` or `outlook_get_message`. |
| `response_format` | string | No       | Output format: `"markdown"` (default) or `"json"`.                |

## Returns

An array of attachment objects, each with `id`, `name`, `contentType`, `size`, `isInline`, and `lastModifiedDateTime`.

## Example use

> "What files are attached to message ID `AAMkAGI2...`?"