curl "https://app.tatango.com/api/v2/lists/ID/messages/MESSAGE_ID" -X GET \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -u emailaddress@mydomain.com:my_api_key \
  -H "Host: example.org" \
  -H "Cookie: "

{
  "status": "OK",
  "message": {
    "id": 14523,
    "content": "AMCE Retail: Go to http://bit.ly/acme to see deals on anvils. Reply STOP to end.",
    "sent_at": "2016-09-07T14:10:53-07:00",
    "status": "sent",
    "name": "my message name",
    "is_broadcast": true,
    "recipient_count": 679571,
    "success_count": 675232,
    "bounces_count": 4339,
    "pending_count": 0,
    "clean_count": 2342,
    "unsubscribe_count": 1362,
    "sms_count": 168808,
    "mms_count": 506424,
    "rcs_count": 0,
    "send_cost": 5096.78,
    "attachment": "https://url-to-your-mms-attachment",
    "cancelled_at": null,
    "message_links": [
      {
        "id": 42,
        "link": "http://bit.ly/acme",
        "count": 2356,
        "display_count": 2356
      }
    ],
    "parts": {
      "sum": 679599,
      "minimum": 1,
      "maximum": 2
    }
  }
}