msg/manage/template_email.php

<?php
return array
(
    'update' => array
    (
        'field'    => array
        (
            'host' => array
            (
                'desc' => '主机地址，端口请用:隔开，格式为host:port',
            ),
            'user',
            'username',
            'pwd',
            'title',
        ),
    ),
);