mailchecker | language temporary email detection | Email library

add_filter( 'manage_edit-shop_order_columns', 'custom_shop_order_column',11);
function custom_shop_order_column($columns)
{
$reordered_columns = array();

    // Woocommerce version 3.3+ compatibility
    $location_after = version_compare( WC_VERSION, '3.3', '<' ) ? 'order_notes' : 'order_status';

    // Inserting the new column in a specific location
    foreach( $columns as $key => $column){
        $reordered_columns[$key] = $column;
        if( $key == $location_after ){
            $reordered_columns['pvdl']= __('PVF/DL', 'woocommerce');
        }
    }
    return $reordered_columns;
}

add_action( 'manage_shop_order_posts_custom_column' , 'custom_orders_list_column_content', 10, 2 );
function custom_orders_list_column_content( $column, $post_id )
{
if('pvdl' == $column){
        //echo 'Working on it';
        $order = wc_get_order($post_id);
        $email = $order->get_billing_email();
        //var_dump($email);
        mailchecker($email);

    }

}
function mailchecker($test_mail){
    
    $life = array();
    array_push($life, $test_mail);
    var_dump($life);
}