{
  "id": "11-wrong-format",
  "category": "abnormal",
  "from": "ops@example.com",
  "subject": "请查收新增预报 WHSU8127240",
  "text": "请查收新增预报，附件是说明文档。",
  "messageId": "<11-wrong-format@fixtures.local>",
  "date": "2026-04-14T10:00:00.000Z",
  "attachments": [
    {
      "filename": "说明.docx",
      "kind": "raw",
      "content": "this is not a spreadsheet",
      "contentType": "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
    }
  ]
}