$new_post = array(
    'post_title'    => '',
    'post_content'  => '',//$post_title,
    'post_status'   => 'publish', // Choose: publish, preview, future, etc.
    'post_type'     => 'name_of_custom_post_type', // Set the post type based on the IF is post_type X
    'post_author' => 1
);
$new_post_id = wp_insert_post($new_post); // http://codex.wordpress.org/Function_Reference/wp_insert_post
if($new_post_id){

    update_post_meta($new_post_id, 'ip', $ip);
    update_post_meta($new_post_id, 'email', $email);