I do not know enough about PHP to figure out what is wrong with my contact form. I'm hoping someone can help me fix my contact form. I'm sure it must be a simple fix but can't figure out what that fix would be.

View the form here:
http://aarongmoore.com/contact/

This is the form's code:

<?php get_header(); ?>

	<div id="contentbg">
		<div id="content">
			<?php
				$name = $_REQUEST['name'] ;
				$email = $_REQUEST['email'] ;
				$message = $_REQUEST['message'] ;
				$subject = $_REQUEST['subject'] ;
				require_once('recaptchalib.php');
				$privatekey = "6LcHMr0SAAAAABP9Yj_8lTa4b9mKqoel4JInB5ui";
				$resp = recaptcha_check_answer ($privatekey,
				$_SERVER["REMOTE_ADDR"],
				$_POST["recaptcha_challenge_field"],
				$_POST["recaptcha_response_field"]);
			 ?>
 
			<?php if (!isset($_REQUEST['email'])) { 
				header( "Location: http://www.aarongmoore.com/contact/&quot;);
			die; } ?>
  			
  			<?php if (empty($email) || empty($message)) { ?>
    			<b>ERROR</>
				<br>E-Mail or message field(s) empty. 
			<?php die; } ?>
  
  			<?php if (!$resp->is_valid) { ?>
  				<b>ERROR</>
				<br>reCaptcha was not filled in correctly. 
    		<?php die; } ?>

			<?php if ( preg_match( "/[\r\n]/", $name ) || preg_match( "/[\r\n]/", $email ) ) 			{ header( "Location: http://www.aarongmoore.com/contact/&quot;);
			 die; } ?>
 			
 			<?php else { mail( "talk@aarongmoore.com", "AGM Owl: $subject", $message, "From: $name - $email" ); } ?>
      					 
		</div>
	</div>
<?php get_footer(); ?>