curl -X GET "https://api.mailofly.com/api/v1/campaigns/cmp_123/recipients?limit=25" \
  -H "Authorization: Bearer mf_live_your_api_key"

{
  "data": [
    {
      "id": "rcp_987",
      "email": "sarah@example.com",
      "status": "delivered",
      "sentAt": "2026-09-11T12:00:00Z",
      "openedAt": "2026-09-11T12:15:30Z"
    }
  ],
  "pagination": {
    "total": 1250,
    "limit": 25,
    "offset": 0
  }
}