email empty body

I using 7.1.1.2 When I use the Hyperlink email in a PDF Fillable Form there is no data that comes thru.
I’ve tried push button action set to submit form, and I would logically code a html mailto with subject and body tag but the URL selection is greyed out, unable to use it.
I would logically think that the Hyperlink email option has a subject tag, but no place to attach the body of the email which I would think would be the FORM name.

I trying to accomplish this:

Application

<label for="fname">First name:</label><br>
<input type="text" id="fname" name="fname"><br>
<label for="lname">Last name:</label><br>
<input type="text" id="lname" name="lname">
<input type="Submit" onclick="submit" value="Email This Form">

On the Hyperlink (email) the is no option to attach the body of the email.
On the Push button (action) Submit option does not allow me to input anything in the URL Example Mailto:some@yaou.com?subject=Subject&body=The body of the email.

Don’t duplicate a question only to provide additional information. This site is not a webmail one but a Question&Answer one. Doing so you create confusion. Any question can always be edited, which sends notifications to participating contributors. A new question does not.

Delete the duplicate at 307076/email-empty-body which has been closed to avoid cross-answers.