setup.setup(form -> {
                updateForm(fessConfig, form);
            });
        });
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse sendmail(final MailForm form) {
        validate(form, messages -> {}, () -> asHtml(path_AdminGeneral_AdminGeneralJsp));

        final String[] toAddresses = form.notificationTo.split(",");

            }

            // notification
            try {
                crawler.sendMail(infoMap);
            } catch (final Exception e) {
                logger.warn("Failed to send a mail.", e);
            }

        }
    }

    protected void sendMail(final Map<String, String> infoMap) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

                                                <button type="submit" class="btn btn-default ${f:h(editableClass)}"
                                                        name="sendmail" value="test">
                                                    <la:message key="labels.send_testmail"/>
                                                </button>
                                            </div>