interface/web/mail/form/mail_user_filter.tform.php
@@ -112,7 +112,7 @@ 'datatype' => 'VARCHAR', 'formtype' => 'TEXT', 'validators' => array ( 0 => array ( 'type' => 'REGEX', 'regex' => '/^[\p{Latin}0-9\.\-\_\ ]{0,100}$/u', 'regex' => '/^[\p{Latin}0-9\.\-\_\ \&]{0,100}$/u', 'errmsg'=> 'target_error_regex'), ), 'default' => '',