On our Name.ly/PRO open registry, we are hosting domain names like b.ag and have encountered the issue: This was quickly patched in the following two files: dns_slave.tform.php dns_soa.tform.php PHP: ... 'validators' => array ( 0 => array ( 'type' => 'NOTEMPTY', 'errmsg'=> 'origin_error_empty'), /* 1 => array ( 'type' => 'UNIQUE', 'errmsg'=> 'origin_error_unique'), */ 1 => array ( 'type' => 'REGEX', 'regex' => '/^[\w\.\-\/]{2,255}\.[a-zA-Z0-9\-]{2,10}[\.]{0,1}$/', 'errmsg'=> 'origin_error_regex'), ), ... 2,255 should be replaced with 1,255 in the regex. Please add it to the following release. Thank you.