Mail function sending blank values - php

Question

I am trying to send an email to user account using php mail() function.The mail is sent successfully but the issue is that it is sending me blank emails with no values in them! The code for the contact page that sends the email is as follows:-
<form class="contact-form" method="POST" action="sendemail.php">
<div class="row-fluid">
<div class="span5">
<label>First Name</label>
<input type="text" class="input-block-level" required="required" placeholder="Your First Name" name="name">
<label>Last Name</label>
<input type="text" class="input-block-level" required="required" placeholder="Your Last Name" name="lname">
<label>Email Address</label>
<input type="text" class="input-block-level" required="required" placeholder="Your email address" name="email">
</div>
<div class="span7">
<label>Message</label>
<textarea name="message" id="message" required="required" class="input-block-level" rows="8" name="message"></textarea>
</div>
</div>
<input type="submit" class="btn btn-primary btn-large pull-right" value="Send Message" />
<p> </p>
</form>
and sendemail.php page code is as follows:
<?php
header('Content-type: application/json');
$status = array(
'type'=>'success',
'message'=>'Email sent!'
);
$name = #trim(stripslashes($_POST['name']));
$email = #trim(stripslashes($_POST['email']));
$subject = "An enquiry sir";
$message = #trim(stripslashes($_POST['message']));
$email_from = $email;
$email_to = 'email#email.com';
echo $body = 'Name: ' . $name . "\n\n" . 'Email: ' . $email . "\n\n" . 'Subject: ' . $subject . "\n\n" . 'Message: ' . $message;
$success = #mail($email_to, $subject, $body, 'From: <'.$email_from.'>');
echo json_encode($status);
die;
?>
Why is the output I get blank in my email id, for example:
Name:
Email:
Subject:
Message:
P.N: I am using here a nova template theme.
The form is being submitted via AJAX using the following JavaScript:
var form = $('.contact-form');
form.submit(function () {
$this = $(this);
$.post($(this).attr('action'), function(data) {
$this.prev().text(data.message).fadeIn().delay(3000).fade‌​Out();
},'json');
return false;
});

Answer 1

the form submission code is not submitting the form data. Here is the code you provided:
var form = $('.contact-form');
form.submit(function () {
$this = $(this);
$.post($(this).attr('action'), function(data) {
$this.prev().text(data.message).fadeIn().delay(3000).fade‌​Out();
},'json');
return false;
});
and this is what it should be:
var form = $('.contact-form');
form.submit(function () {
$this = $(this);
$.post($(this).attr('action'), $(this).serialize(), function(data) {
$this.prev().text(data.message).fadeIn().delay(3000).fade‌​Out();
},'json');
return false;
});

Answer 2

Remove the echo from the line that defines $body
From this...
echo $body = 'Name: ' . $name . "\n\n" . 'Email
To this...
$body = 'Name: ' . $name . "\n\n" . 'Email