http://bugs.cacert.org/view.php?id=595

includes/account.php

@@ -418,6 +418,7 @@
 		unset($oldid);
 		$id = 8;
 		$addy = array();
+		$adds = array();
 		if(strtolower(substr($newdom, -4, 3)) != ".jp")
 			$adds = explode("\n", trim(`/usr/bin/whois $newdom|grep "@"`));
 		if(substr($newdomain, -4) == ".org" || substr($newdomain, -5) == ".info")