curl --request GET \
  --url http://localhost:3001/api/v1/mail/{folder}/{id} \
  --cookie nut-session=

{
  "success": true,
  "data": {
    "message": {
      "id": "<string>",
      "emailId": "<string>",
      "from": "Acme <hello@acme.com>",
      "to": [
        "<string>"
      ],
      "subject": "<string>",
      "cc": [
        "<string>"
      ],
      "bcc": [
        "<string>"
      ],
      "messageId": "<string>",
      "attachments": [
        {
          "id": "<string>",
          "filename": "<string>",
          "contentType": "<string>",
          "contentDisposition": "<string>",
          "contentId": "<string>"
        }
      ],
      "receivedAt": "2023-11-07T05:31:56Z",
      "content": "<string>"
    }
  }
}