curl --request GET \
  --url https://email.universal.rollout.com/api/emailMessages

{
  "_metadata": {
    "collection": "<string>",
    "offset": 123,
    "limit": 123,
    "total": 123,
    "next": "<string>",
    "nextLink": "<string>"
  },
  "emailmessages": [
    {
      "id": "<string>",
      "personId": "<string>",
      "userId": "<string>",
      "threadId": "<string>",
      "subject": "<string>",
      "body": "<string>",
      "sender": {
        "name": "<string>",
        "email": "<string>"
      },
      "recipients": [
        {
          "name": "<string>",
          "email": "<string>"
        }
      ],
      "isRead": true,
      "isStarred": true,
      "isIncoming": true,
      "sent": "<string>",
      "received": "<string>",
      "created": "<string>",
      "updated": "<string>",
      "rolloutUpdated": "<string>",
      "originalIds": {},
      "original": {}
    }
  ]
}