Question

我一直在收到带有图片和主题行的促销电子邮件。我只在Gmail中看到过。不是表情符号，而是收件箱预览中主题行部分正下方的图像预览电子邮件对此更具吸引力。我已经检查了一段时间的谷歌，看看这个功能叫什么，但找不到相同的任何线索。对此的任何信息，将不胜感激。

Answer 1

Gmail Promotion Annotation 自2018年以来，实际上，您可以通过在电子邮件头部使用JSON-LD标记在Gmail中添加带有预览的图像。 Gmail促销标签可以显示：

徽标
图片
主题
带有日期框架的交易徽章
徽章设计中的折扣代码

到目前为止，自定义设置非常严格，但下面的代码段中对Google指南进行了注释：

<script type="application/ld+json">
 [{
   "@context": "http://schema.org/",
   "@type": "Organization",

   // WARNING: Before sending email, either point the logo
   // at your own image or delete the logo annotation.
   //
   // If showing a logo, we recommend using an https URL.
   // It's not a requirement today, but may be in the future.
   "logo": "https://www.gstatic.com/images/branding/product/1x/googleg_48dp.png"
  },{
   "@context": "http://schema.org/",
   "@type": "EmailMessage",

   // Use this optional alternative subject line to avoid duplicate text
   // between the subject, deal badge, and discount code.
   "subjectLine": "[Important] Please add subject line in annotation"
  },{
   "@context": "http://schema.org/",
   "@type": "DiscountOffer",

   // Describe your discount, this will be shown as a badge (eg "25% off" or "free 
      shipping")
   "description": "20% off",

   "discountCode": "PROMO",
   "availabilityStarts": "2019-07-21T03:42:38-07:00",
   "availabilityEnds": "2019-07-24T03:42:38-07:00"
  },{
   // Promotion card with single image.
   // We recommend using an https URL.  It's not a requirement today, but may be in 
       the future.
   // Any image size will work and will just be cropped automatically.
   // GIF & WEBP images are not supported and will be filtered out.
   // Sample image is 538x138, 3.9 aspect ratio
    "@context": "http://schema.org/",
    "@type": "PromotionCard",
    "image": "https://www.google.com/gmail-for-marketers/promo-tab/markup- 
     tool/sample.png"
 }]
</script>

此答案的资源可以在Google开发者文档中找到： Promotion Tab Documentation

Answer 2

向每个GridView行添加一个事件onmouseover = FuntionName（），并显示将包含消息的弹出窗口。但是要从客户端获取

如何在gmail收件箱预览中显示图像

2 个答案: