Microsoft graph API以用户身份检索会议室邮箱

Question

如果我查询microsoft graph api来获取以下所有用户，则api响应包括用户以及会议室邮箱详细信息。

https://graph.microsoft.com/v1.0/users    

响应

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users",
    "value": [
        {
            "businessPhones": [],
            "displayName": "User Alen",
            "givenName": "smith",
            "jobTitle": null,
            "mail": "smith@domain.com",
            "mobilePhone": null,
            "officeLocation": null,
            "preferredLanguage": "en-US",
            "surname": "Alen",
            "userPrincipalName": "smith@domain.com",
            "id": "1e534b05-c421-40b3-w3e4-31ddeb4b23e45"
        } ,
        {
            "businessPhones": [],
            "displayName": "my Room 5",
            "givenName": null,
            "jobTitle": null,
            "mail": "myroom5@domain.com",
            "mobilePhone": null,
            "officeLocation": "Hull",
            "preferredLanguage": null,
            "surname": null,
            "userPrincipalName": "managedroom5@domain.com",
            "id": "418d8df4-9e5c-4c42-aw23-6da827345f45"
        }
    ]
}

将会议室邮箱作为用户的原因是什么？我正在使用Office 365帐户。