Google（收件箱、gmail、现在）无法识别 EventReservation

Question

我正在将 EventReservation JSON-LD 添加到电子邮件中（使用 Chrome 的 gmail API 从我 发送给我 延期）。

它已成功发送到我的收件箱，但google 未将此识别为事件。这是来自已发送电子邮件的电子邮件 body 转储（HTML 部分已通过 google 结构化数据测试工具和 yandex 结构化数据验证器成功验证，实际上 json 是 copy-pasted 来自在我的收件箱中解析的真实事件，因此脚本应该是好的）：

Received: from 236444161893
    named unknown
    by gmailapi.google.com
    with HTTPREST;
    Sat, 26 Mar 2016 07:34:52 -0400
From: XXXXXXX@gmail.com
To: XXXXXXX@gmail.com
Subject: Lets Celebrate !
Content-Type: text/html; charset="utf-8"
Date: Sat, 26 Mar 2016 07:34:52 -0400
Message-Id: <CAEY7X7rQZFQTmYqyH-UEMt5KR3bwbC5D-KhT3Rv8vKixVrGkFA@mail.gmail.com>


<html>
    <head>
        <title>Sample Title</title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    </head>
    <body>
        <script type="application/ld+json">
{
    "@context": "http://schema.org",
    "@type": "EventReservation",
    "reservationNumber": "123123123",
    "underName": {
        "@type": "Person",
        "name": "John Smith"
    },
    "reservationStatus": "http://schema.org/Confirmed",
    "reservationFor": {
        "@type": "Event",
        "name": "ProductCamp Helsinki 2016",
        "startDate": "2016-04-09T10:00:00+03:00",
        "endDate": "2016-04-09T16:00:00+03:00",
        "location": {
            "@type": "Place",
            "name": "OP Headquarters",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Teollisuuskatu 1E00510 Helsinki",
                "addressLocality": "Helsinki",
                "addressRegion": "",
                "postalCode": "00510",
                "addressCountry": "FI"
            }
        }
    }
}
        </script>
        <b>I did it!</b>
    </body>
</html>

EventReservation Email in my Inbox

有什么问题吗？

UPDATE：当我通过 script.google.com (MailApp.sendEmail) 发送时，此 HTML 有效并由收件箱解析，但没有如果它是使用 gmail API (POST https://www.googleapis.com/gmail/v1/users/me/messages/send) 从 Chrome 扩展发送的，则工作。所以看起来电子邮件 headers 有问题。例如。 "correct" 从 script.google.com 发送的电子邮件包含 DKIM-Signature 等：

Received-SPF: pass (google.com: domain of 3JIP2VgkJCcEiluklyzwinthps.jvtiluklyzwinthps.jvt@maestro.bounces.google.com designates 2607:f8b0:400c:c05::245 as permitted sender) client-ip=2607:f8b0:400c:c05::245;
MIME-Version: 1.0
Message-ID: <001a1146937894fe1e052ef2fa6a@google.com>
Date: Sat, 26 Mar 2016 12:40:04 +0000
Subject: Test Email markup - Sat Mar 26 2016 15:40:04 GMT+0300 (EAT)
From: XXXXXXX@gmail.com
To: XXXXXXX@gmail.com
Content-Type: multipart/alternative; boundary=001a1146937894fe08052ef2fa67

--001a1146937894fe08052ef2fa67
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes

I did it!

--001a1146937894fe08052ef2fa67
Content-Type: text/html; charset=ISO-8859-1

<html>
    <head>
        <title>Sample Title</title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    </head>
    <body>
        <script type="application/ld+json">
{
    "@context": "http://schema.org",
    "@type": "EventReservation",
    "reservationNumber": "1231231234",
    "underName": {
        "@type": "Person",
        "name": "John Smith"
    },
    "reservationStatus": "http://schema.org/Confirmed",
    "reservationFor": {
        "@type": "Event",
        "name": "ProductCamp Helsinki 2016",
        "startDate": "2016-04-09T10:00:00+03:00",
        "endDate": "2016-04-09T16:00:00+03:00",
        "location": {
            "@type": "Place",
            "name": "OP Headquarters",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Teollisuuskatu 1E00510 Helsinki",
                "addressLocality": "Helsinki",
                "addressRegion": "",
                "postalCode": "00510",
                "addressCountry": "FI"
            }
        }
    }
}
        </script>
        <b>I did it!</b>
    </body>
</html>
--001a1146937894fe08052ef2fa67--

Answer 1

我尝试做同样的事情（and asked a similar question) and reached the conclusion that the problem is that Inbox ignores structured data unless the email is authenticated using DKIM（以减少垃圾邮件）。我不知道如何使用 Gmail API 启用身份验证，所以我选择使用Google Apps 脚本函数 MailApp.sendEmail() 而不是，因为它会发送经过身份验证的电子邮件。

Google（收件箱、gmail、现在）无法识别 EventReservation

Google (inbox, gmail, now) doesn't recognize EventReservation

schema.org

google-schemas

google-now

json-ld