--- class.mailselect.php        2013-05-28 16:56:04.557351026 +0200
+++ class.mailselect.new.php    2013-05-28 16:56:28.100921916 +0200
@@ -47,6 +47,16 @@
 
     var $allowedTables = array('tt_address','fe_users');
 
+    /** Override instance variables for use with address groups
+    */
+    public function init($name, $table, $fieldList = '') {
+        // add a special relation comparison for us
+        $this->lang['comparison']['74_'] = 'Address Group';
+        $this->compSQL['74'] = 'uid IN (SELECT f.uid FROM tt_address f LEFT JOIN tt_address_group_mm tgm ON f.uid = tgm.uid_local WHERE tgm.uid_foreign = #VALUE#)';
+        
+        parent::init($name, $table, $fieldList);
+    }
+
     /**
      * build a dropdown box. override function from parent class. Limit only to 2 tables.
      *