interface/web/mail/form/spamfilter_config.tform.php
@@ -95,6 +95,13 @@ 'datatype' => 'VARCHAR', 'formtype' => 'TEXT', 'default' => 'server1.domain.tld', 'filters' => array( 0 => array( 'event' => 'SAVE', 'type' => 'IDNTOASCII'), 1 => array( 'event' => 'SHOW', 'type' => 'IDNTOUTF8'), 2 => array( 'event' => 'SAVE', 'type' => 'TOLOWER') ), 'validators' => array ( 0 => array ( 'type' => 'NOTEMPTY', 'errmsg'=> 'hostname_error_empty'), ),