[Plugin: Contact Form 7] not coming in email

ok……
When I use the default form like the following, I recieve a subject and a message in my email:
<p>Your Name (required)
[text* your-name] </p>

<p>Your Email (required)
[email* your-email] </p>

<p>Subject
[text your-subject] </p>

<p>Your Message
[textarea your-message] </p>

<p>[submit “Send”]</p>

When I add anything else like a textarea or checkbox it is not received in the email.

What am I doing wrong?

From Contact Form 7 FAQ

3. How can I add a field to my contact form?

4. Nothing shows up in the email, even after adding a tag to the form! How can I include a new field’s input in the email?

Please read these FAQ first.