--- uc_discounts_email.module.orig	2009-10-15 12:15:57.000000000 -0400
+++ uc_discounts_email.module	2009-10-15 12:16:01.000000000 -0400
@@ -25,7 +25,7 @@
 
 function uc_discounts_email_check($condition, $total_price, $cart) {
   global $user;
-	return uc_discounts_compare('text', $user->mail, $condition->op, $condition->item_id);
+	return uc_discounts_compare('text', strtolower($user->mail), $condition->op, strtolower($condition->item_id));
 }
 
 function uc_discounts_email_item_field() {