{
  "id": "03-normal-do-upload",
  "category": "normal",
  "from": "ops@example.com",
  "subject": "WHSU8127240 DO请查收",
  "text": "DO也同步上传至附件请注意查收！",
  "messageId": "<03-normal-do-upload@fixtures.local>",
  "date": "2026-04-14T02:00:00.000Z",
  "attachments": [
    {
      "filename": "WHSU8127240-DO.pdf",
      "kind": "pdf",
      "text": "DELIVERY ORDER WHSU8127240"
    }
  ]
}