Using Form to Insert into Custom Fields

My Post has a simple 2 field Form (Name, Email) as Content.

And I have two Custom Fields set up: Name and Email

So, when the user fills in the form it should Insert their name and email into the Post’s Custom Fields. The Form Action is: insert.php, which is located at the root level of the site.
insert.php:

<?php

ini_set('display_errors', 1);
error_reporting(E_ALL);

require_once('wp-load.php');

if($_POST['submit']) //If submit is hit
{
  // fetch user input from the form

  $name = mysql_real_escape_string($_POST['Name']);
  $email = mysql_real_escape_string($_POST['Email']);

 // execute the SQL query
  $result=mysql_query("INSERT INTO wp_postmeta
    (post_id,meta_key,meta_value) VALUES
    ($post->ID,'Name','$name'),
    ($post->ID,'Email','$email')");  

    print mysql_affected_rows();
    print mysql_error();

  // check for errors
if(!$result) die('Error: '.mysql_error());
else echo 'Inserted row with id='.mysql_insert_id();

}
?>

When it runs, after submitting ‘Michael Sky’, ‘[email protected]’ I get:

-1You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ”Name’,’Michael Sky’), (,’Email’,’[email protected]’)’ at line 3Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ”Name’,’Michael Sky’), (,’Email’,’[email protected]’)’ at line 3