为什么联系表格 7 返回空内容

Question

我使用此联系表格 7 来生成更多自定义表格，但在我所做的测试中，我收到一封没有内容的邮件。 我该如何解决这个问题？

<div class="form-group">

 <p>[text* text-375 placeholder "Your name"]</p>

 <p>[text* text-878 placeholder "Your e-mail"]</p>

</div>

<p>[textarea textarea-949 40x9 placeholder "Your message"]</p>

[submit "buy now"]

表单消息正文

From: [your-name] <[email]>
Subject: [your-subject]

Message Body:
[your-message]

-- 
This e-mail was sent from a contact form on [_site_title] ([_site_url])

收到的email的内容：

From: [name] <[email]>
Subject: [subject]

Message Body:
[message]

--
This e-mail was sent from a contact form on XXX XXX (https://XXXX.com)