Index: /mods/wpsg_mod_kundenverwaltung.class.php
===================================================================
--- /mods/wpsg_mod_kundenverwaltung.class.php	(revision 6165)
+++ /mods/wpsg_mod_kundenverwaltung.class.php	(revision 6166)
@@ -1432,5 +1432,6 @@
 			  		 	LEFT JOIN `".WPSG_TBL_ADRESS."` AS CA ON (CA.`id` = C.`adress_id`)
 				WHERE
-					C.`deleted` != '1'
+					C.`deleted` != '1' AND
+					C.`email` != ''
 			");