Need an extra set of eyes -- Can't figure out why PHP Script won't send email

All, I've been messing with this script all day...and for the life of me I can't figure out why it won't send.   It will process without errors, but there is no notice or anything on this script.   It just gives me a blank screen.  Perhaps another set of eyes on this script will help.   Any help with this woud be greatly appreciated.

Thank you in advance

<?php
if(isset($_POST['email'])) {
	
   // EDIT THE 2 LINES BELOW AS REQUIRED
    $email_to = "myemail@myemailserver.com";
    $email_subject = "Test Email Form";
	$email_from_test = "test@test.com";
     
     
    function died($error) {
        // your error code can go here
        echo "We are very sorry, but there were error(s) found with the form you submitted. ";
        echo "These errors appear below.<br /><br />";
        echo $error."<br /><br />";
        echo "Please go back and fix these errors.<br /><br />";
        die();
    }
     
    // validation expected data exists
    if(!isset($_POST['Requester_Name']) ||
	isset($_POST['Requested_Insured']) ||
	isset($_POST['Insured_Entity_Name']) ||
	isset($_POST['Requester_Email']) ||
	isset($_POST['Requester_Phone_Number']) ||
	isset($_POST['General_Liability_Certificate']) ||
	isset($_POST['Workers_Comp_Certificate']) ||
	isset($_POST['Automobile_Certificate']) ||
	isset($_POST['Other_Certificate']) ||
	isset($_POST['Certificate_Holder_Name']) ||
	isset($_POST['Certificate_Holder_Address1']) ||
	isset($_POST['Certificate_Holder_Address2']) ||
	isset($_POST['Certificate_Holder_City']) ||
	isset($_POST['Certificate_Holder_State']) ||
	isset($_POST['Certificate_Holder_Zip']) ||
	isset($_POST['Certificate_Holder_Specific_Project']) ||
	isset($_POST['Additional_Insureds']) ||
	isset($_POST['Additional_Loss_Payee']) ||
	isset($_POST['Waiver_Of_Subrogation']) ||
	isset($_POST['WOS_For_GL1']) ||
	isset($_POST['WOS_For_GL']) ||
	isset($_POST['Same_As_Cert_Holder']) ||
	isset($_POST['Additional_Insured_Instructions']) ||
	isset($_POST['Special_Certificate_Instructions']) ||
	isset($_POST['Send_Certificate_Via']) ||
	isset($_POST['Send_Certificate_Via_Address'])) {

        died('We are sorry, but there appears to be a problem with the form you submitted.');       
    }
     
	$Requester_Name = $_POST['Requester_Name']; // required
	$Requested_Insured = $_POST['Requested_Insured']; // required
	$Insured_Entity_Name = $_POST['Insured_Entity_Name']; // required
	$Requester_Email = $_POST['Requester_Email']; // required
	$Requester_Phone_Number = $_POST['Requester_Phone_Number']; // required
	$General_Liability_Certificate = $_POST['General_Liability_Certificate']; // required
	$Workers_Comp_Certificate = $_POST['Workers_Comp_Certificate']; // required
	$Automobile_Certificate = $_POST['Automobile_Certificate']; // required
	$Other_Certificate = $_POST['Other_Certificate']; // required
	$Certificate_Holder_Name = $_POST['Certificate_Holder_Name']; // required
	$Certificate_Holder_Address1 = $_POST['Certificate_Holder_Address1']; // required
	$Certificate_Holder_Address2 = $_POST['Certificate_Holder_Address2']; // required
	$Certificate_Holder_City = $_POST['Certificate_Holder_City']; // required
	$Certificate_Holder_State = $_POST['Certificate_Holder_State']; // required
	$Certificate_Holder_Zip = $_POST['Certificate_Holder_Zip']; // required
	$Certificate_Holder_Specific_Project = $_POST['Certificate_Holder_Specific_Project']; // required
	$Additional_Insureds = $_POST['Additional_Insureds']; // required
	$Additional_Loss_Payee = $_POST['Additional_Loss_Payee']; // required
	$Waiver_Of_Subrogation = $_POST['Waiver_Of_Subrogation']; // required
	$WOS_For_GL1 = $_POST['WOS_For_GL1']; // required
	$WOS_For_GL = $_POST['WOS_For_GL']; // required
	$Same_As_Cert_Holder = $_POST['Same_As_Cert_Holder']; // required
	$Additional_Insured_Instructions = $_POST['Additional_Insured_Instructions']; // required
	$Special_Certificate_Instructions = $_POST['Special_Certificate_Instructions']; // required
	$Send_Certificate_Via = $_POST['Send_Certificate_Via']; // required
	$Send_Certificate_Via_Address = $_POST['Send_Certificate_Via_Address']; // required
	
	$error_message = "";    
	$email_exp = "^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$"; 
	if(!eregi($email_exp,$Requester_Email)) 
	{$error_message .= 'The Email Address you entered does not appear to be valid.<br />';
	}
	 $string_exp = "^[a-z .'-]+$";
	if(!eregi($string_exp,$Requester_Name)) {$error_message .= 'The Requester_Name you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Requested_Insured)) {$error_message .= 'The Requested_Insured you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Insured_Entity_Name)) {$error_message .= 'The Insured_Entity_Name you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Requester_Phone_Number)) {$error_message .= 'The Requester_Phone_Number you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$General_Liability_Certificate)) {$error_message .= 'The General_Liability_Certificate you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Workers_Comp_Certificate)) {$error_message .= 'The Workers_Comp_Certificate you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Automobile_Certificate)) {$error_message .= 'The Automobile_Certificate you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Other_Certificate)) {$error_message .= 'The Other_Certificate you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Certificate_Holder_Name)) {$error_message .= 'The Certificate_Holder_Name you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Certificate_Holder_Address1)) {$error_message .= 'The Certificate_Holder_Address1 you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Certificate_Holder_Address2)) {$error_message .= 'The Certificate_Holder_Address2 you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Certificate_Holder_City)) {$error_message .= 'The Certificate_Holder_City you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Certificate_Holder_State)) {$error_message .= 'The Certificate_Holder_State you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Certificate_Holder_Zip)) {$error_message .= 'The Certificate_Holder_Zip you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Certificate_Holder_Specific_Project)) {$error_message .= 'The Certificate_Holder_Specific_Project you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Additional_Insureds)) {$error_message .= 'The Additional_Insureds you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Additional_Loss_Payee)) {$error_message .= 'The Additional_Loss_Payee you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Waiver_Of_Subrogation)) {$error_message .= 'The Waiver_Of_Subrogation you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$WOS_For_GL1)) {$error_message .= 'The WOS_For_GL1 you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$WOS_For_GL)) {$error_message .= 'The WOS_For_GL you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Same_As_Cert_Holder)) {$error_message .= 'The Same_As_Cert_Holder you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Additional_Insured_Instructions)) {$error_message .= 'The Additional_Insured_Instructions you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Special_Certificate_Instructions)) {$error_message .= 'The Special_Certificate_Instructions you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Send_Certificate_Via)) {$error_message .= 'The Send_Certificate_Via you entered does not appear to be valid.<br />';  }
	if(!eregi($string_exp,$Send_Certificate_Via_Address)) {$error_message .= 'The Send_Certificate_Via_Address you entered does not appear to be valid.<br />';  }


    $email_message = "Form details below.\n\n";
     
    function clean_string($string) {
      $bad = array("content-type","bcc:","to:","cc:","href");
      return str_replace($bad,"",$string);
    }
     
	$email_message .= "Requester_Name: ".clean_string($Requester_Name)."\n";
	$email_message .= "Requested_Insured: ".clean_string($Requested_Insured)."\n";
	$email_message .= "Insured_Entity_Name: ".clean_string($Insured_Entity_Name)."\n";
	$email_message .= "Requester_Email: ".clean_string($Requester_Email)."\n";
	$email_message .= "Requester_Phone_Number: ".clean_string($Requester_Phone_Number)."\n";
	$email_message .= "General_Liability_Certificate: ".clean_string($General_Liability_Certificate)."\n";
	$email_message .= "Workers_Comp_Certificate: ".clean_string($Workers_Comp_Certificate)."\n";
	$email_message .= "Automobile_Certificate: ".clean_string($Automobile_Certificate)."\n";
	$email_message .= "Other_Certificate: ".clean_string($Other_Certificate)."\n";
	$email_message .= "Certificate_Holder_Name: ".clean_string($Certificate_Holder_Name)."\n";
	$email_message .= "Certificate_Holder_Address1: ".clean_string($Certificate_Holder_Address1)."\n";
	$email_message .= "Certificate_Holder_Address2: ".clean_string($Certificate_Holder_Address2)."\n";
	$email_message .= "Certificate_Holder_City: ".clean_string($Certificate_Holder_City)."\n";
	$email_message .= "Certificate_Holder_State: ".clean_string($Certificate_Holder_State)."\n";
	$email_message .= "Certificate_Holder_Zip: ".clean_string($Certificate_Holder_Zip)."\n";
	$email_message .= "Certificate_Holder_Specific_Project: ".clean_string($Certificate_Holder_Specific_Project)."\n";
	$email_message .= "Additional_Insureds: ".clean_string($Additional_Insureds)."\n";
	$email_message .= "Additional_Loss_Payee: ".clean_string($Additional_Loss_Payee)."\n";
	$email_message .= "Waiver_Of_Subrogation: ".clean_string($Waiver_Of_Subrogation)."\n";
	$email_message .= "WOS_For_GL1: ".clean_string($WOS_For_GL1)."\n";
	$email_message .= "WOS_For_GL: ".clean_string($WOS_For_GL)."\n";
	$email_message .= "Same_As_Cert_Holder: ".clean_string($Same_As_Cert_Holder)."\n";
	$email_message .= "Additional_Insured_Instructions: ".clean_string($Additional_Insured_Instructions)."\n";
	$email_message .= "Special_Certificate_Instructions: ".clean_string($Special_Certificate_Instructions)."\n";
	$email_message .= "Send_Certificate_Via: ".clean_string($Send_Certificate_Via)."\n";
	$email_message .= "Send_Certificate_Via_Address: ".clean_string($Send_Certificate_Via_Address)."\n";

     
     
// create email headers
$headers = 'From: '.$email_from_test."\r\n".
'Reply-To: '.$email_from_test."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);  
?>
 
<!-- include your own success html here -->
 
Thank you for contacting us. We will be in touch with you very soon.
 
<?php
}
?>

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