curl --request POST \
  --url https://app.sendmux.ai/api/v1/mailbox/messages:batch-delete \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "ids": [
    "<string>"
  ]
}
'

{
  "ok": true,
  "meta": {
    "request_id": "req_clxxxxxxxxxxxxxxxxxxxxxxxxx"
  },
  "data": {
    "deleted": [
      "<string>"
    ],
    "not_found": [
      "<string>"
    ],
    "failed": [
      {
        "id": "<string>",
        "code": "<string>",
        "message": "<string>"
      }
    ],
    "states": {
      "old_state": "<string>",
      "new_state": "<string>"
    }
  }
}