Contact form on an HTML website

html file for contact form

<form class="form" action="mail.php" method="post">
		<!-- Name Field Start -->
		  <div class="name">
  		  <input type="text" placeholder="YOUR NAME" name="name">
		  </div>
		<!-- Name Field End -->
		<!-- Email Start -->
		  <div class="email">
		    <input type="email" placeholder="YOUR EMAIL" name="email">
		  </div>
		<!-- Email End -->
		<!-- Meaasage Start -->
			<div class="message">
				<textarea placeholder="YOUR MESSAGE" name="message"></textarea>
			</div>
		<!-- Message End -->
		<!-- Submit Button -->
	  		<button type="submit" value="send">submit</button>
	</form>

php file for submit button

<?php $name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$formcontent="From: $name \n Message: $message";
$recipient = "hello@nhudesign.com";
$subject = "Contact Form";
$mailheader = "From: $email \r\n";
mail($recipient, $subject, $formcontent, $mailheader) or die("Error!");

if( mail ($recipient, $message, $name, "From: $email")){
header("Location: submit.html"); 
}
else {
echo "Something messed up! :( <br> Send your message to hello@nhudesign.com, and I'll be sure to get back to you!<br><br>Name: $name<br>E-mail: $email<br>Comment:<br>$comment";
}
?>