{
  "messageId": "sim-verify-1",
  "from": "buyer@sz-precision.com",
  "to": [
    "rfq@we.com"
  ],
  "cc": [],
  "subject": "【询价】RFQ-2607-501 精密车削件 6 项",
  "body": "我方客户码 C014,本次询价单号 RFQ-2607-501,附件是 BOM 清单。",
  "receivedAt": "2026-07-28T06:00:00.000Z",
  "attachments": [
    {
      "name": "BOM.xlsx",
      "contentType": "application/vnd.ms-excel",
      "size": 18432,
      "ref": "sim://a/1"
    }
  ]
}