public static function getMultioptions()
    {
        $rows = (new Orm\CmsMailServerQuery)
            ->whereActive()->equals(1)
            ->find();
        $pairs = [];
        foreach ($rows as $row) {
            $pairs[$row->id] = $row->address . ':' . $row->port . ' (' . $row->username . ')';
        }
        return $pairs;
    }