PHP Need guidance in php contact form

Dear experts,
I'm trying to set up the contact form in my one page website.

I have tried my best to set up the php code & html code. But everytime I click on "Send" but I get "message failed" error.
I'm posting here HTML & PHP code for your review.

HTML Code:

HTML:

<form action="contact.php" method="post" id="ContactForm" class="contact-form">
                                                <div>
                                                    <div class="wrapper"><span>Your Name:</span><input name="cf_name" type="text" class="input" ></div>
                                                    <div class="wrapper"><span>Your E-mail:</span><input name="cf_email" type="text" class="input" ></div>
                                                    <div class="wrapper"><span>Your Phone:</span><input name="cf_phone" type="text" class="input" ></div>
                                                    <div class="textarea_box"><span>Your Message:</span><textarea name="cf_message" cols="1" rows="1"></textarea></div>
                                                    <a href="javascript:" class="button" onClick="document.getElementById('ContactForm').submit()"><span class="shadow"></span>Send</a>
                                                    <a href="javascript:" class="button" onClick="document.getElementById('ContactForm').reset()"><span class="shadow"></span>Clear</a>
                                                </div>
                                            </form>

PHP Code:

PHP:

<?php
 
$field_name = $_POST['cf_name'];
 
$field_email = $_POST['cf_email'];
 
$field_message = $_POST['cf_message'];
 
$mail_to = 'contact@xyz.com';
 
$subject = 'Message from a site visitor '.$field_name;
 
$body_message = 'From: '.$field_name."\n";
 
$body_message .= 'E-mail: '.$field_email."\n";
 
$body_message .= 'Message: '.$field_message;
 
$headers = 'From: '.$field_email."\r\n";
 
$headers .= 'Reply-To: '.$field_email."\r\n";
 
$mail_status = mail($mail_to, $subject, $body_message, $headers);
 
if ($mail_status) { ?>
 
    <script language="javascript" type="text/javascript">
 
        alert('Thank you for the message. We will contact you shortly.');
 
        window.location = 'index.html';
 
    </script>
 
<?php
 
}
 
else { ?>
 
    <script language="javascript" type="text/javascript">
 
        alert('Message failed. Please, send an email to contact@xyz.com');
 
        window.location = 'index.html';
 
    </script>
 
<?php
 
}
 
?>

Please see the attached screen shot for error message. I'm not able to trigger/ get email in my mail box. Looking forward to your advise. Please help.

Thanks & Regards

 

contact.php

Code:

<?php
$email = 'YOUR EMAIL';
echo 'Please fill the form with valid data !<br />';
echo '<br />	';
echo '<form method="post" action="form-contact.php" id="contactform">';
echo '<label for="name">* Name</label><br />';
echo '<input name="name" type="text" id="name" value="" />';
echo '<br />';
echo '<label for="email">* Email</label><br />';
echo '<input name="email" type="text" id="email" value="" />';
echo '<br />';
echo '<label for="comments">* Message</label><br />';
echo '<textarea name="comments" cols="30" rows="3" id="comments"></textarea>';
echo '<p>* Are you human?</p>';
echo '<label for="verify" accesskey="V">&nbsp;&nbsp;&nbsp;3 + 2 =</label>';
echo '<input name="verify" type="text" id="verify" size="4" value="" style="width: 30px;" /><br /><br />';
echo '<input type="submit" class="submit" id="submit" value="Submit" />';
echo '<input name="address" type="hidden" id="address" value="<?php echo $email ?>" />';     
echo '</form>';

?>

form-contact.php

Code:

<?php

if(!$_POST) exit;

// Email address verification, do not edit.
function isEmail($email) { 
	return(preg_match("/^[-_.[:alnum:]]+@((([[:alnum:]]|[[:alnum:]][[:alnum:]-]*[[:alnum:]])\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)$|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i",$email));		
}

if (!defined("PHP_EOL")) define("PHP_EOL", "\r\n");

$name     = $_POST['name'];
$email    = $_POST['email'];
$comments = $_POST['comments'];
$verify   = $_POST['verify'];
$address  = $_POST['address'];
if(trim($name) == '') {
	echo '<div class="error_message">Attention! You must enter your name.</div>';
	echo '<button onclick="history.go(-1);"><b>Go back</b></button>';
	exit();
} else if(trim($email) == '') {
	echo '<div class="error_message">Attention! Please enter a valid email address.</div>';
	echo '<button onclick="history.go(-1);"><b>Go back</b></button>';
	exit();
} else if(!isEmail($email)) {
	echo '<div class="error_message">Attention! You have entered an invalid e-mail address, try again.</div>';
	echo '<button onclick="history.go(-1);"><b>Go back</b></button>';
	exit();
}

if(trim($comments) == '') {
	echo '<div class="error_message">Attention! Please enter your message.</div>';
	echo '<button onclick="history.go(-1);"><b>Go back</b></button>';
	exit();
} else if(!isset($verify) || trim($verify) == '') {
	echo '<div class="error_message">Attention! Please enter the verification number.</div>';
	echo '<button onclick="history.go(-1);"><b>Go back</b></button>';
	exit();
} else if(trim($verify) != '5') {
	echo '<div class="error_message">Attention! The verification number you entered is incorrect.</div>';
	echo '<button onclick="history.go(-1);"><b>Go back</b></button>';
	exit();  
}

if(get_magic_quotes_gpc()) {
	$comments = stripslashes($comments);
}

// Configuration option.
// i.e. The standard subject will appear as, "You've been contacted by John Doe."

// Example, $e_subject = '$name . ' has contacted you via Your Website.';

$e_subject = 'You\'ve been contacted by ' . $name . '.';


// Configuration option.
// You can change this if you feel that you need to.
// Developers, you may wish to add more fields to the form, in which case you must be sure to add them here.
		
$e_body = "You have been contacted by $name. Their additional message is as follows..." . PHP_EOL . PHP_EOL;
$e_content = "\"$comments\"" . PHP_EOL . PHP_EOL;
$e_reply = "You can contact $name via email at: $email";
		
$msg = wordwrap( $e_body . $e_content . $e_reply, 70 );

$headers = "From: $email" . PHP_EOL;
$headers .= "Reply-To: $email" . PHP_EOL;
$headers .= "MIME-Version: 1.0" . PHP_EOL;
$headers .= "Content-type: text/plain; charset=utf-8" . PHP_EOL;
$headers .= "Content-Transfer-Encoding: quoted-printable" . PHP_EOL;
if(mail($address, $e_subject, $msg, $headers)) {

	// Email has sent successfully, echo a success page.
	
	echo "<fieldset>";			
	echo "<div id='success_page'>";
	echo "<h1>Email Sent Successfully.</h1>";
	echo "<p>Thank you <strong>$name</strong>, your message has been submitted to us.</p>";
	echo "</div>";
	echo "</fieldset>";
	echo '<a href="index.php"><b>Home</b></a>';
	 
} else {

	echo 'ERROR!';
    echo '<button onclick="history.go(-1);"><b>Go back</b></button>';

}
?>