diff --git a/database/maildb.sql b/database/maildb.sql
index 8d335773..c3d55c9c 100644
--- a/database/maildb.sql
+++ b/database/maildb.sql
@@ -50,6 +50,8 @@ CREATE TABLE `t_mail` (
   `sendtime` int(11) NOT NULL DEFAULT '0' COMMENT '发送时间',
   `user_reg_start_time` int(11) NOT NULL DEFAULT '0' COMMENT '用户注册开始时间',
   `user_reg_end_time` int(11) NOT NULL DEFAULT '0' COMMENT '用户注册结束时间',
+  `tag1` int(11) NOT NULL DEFAULT '0' COMMENT 'tag1',
+  `tag2` int(11) NOT NULL DEFAULT '0' COMMENT 'tag2',
   `expiretime` int(11) NOT NULL DEFAULT '0' COMMENT '过期时间',
   `createtime` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
@@ -144,21 +146,25 @@ CREATE TABLE `t_event` (
 /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
 
 --
--- Table structure for table `t_mail`
+-- Table structure for table `t_sys_mail`
 --
 
-DROP TABLE IF EXISTS `t_mail`;
+DROP TABLE IF EXISTS `t_sys_mail`;
 /*!40101 SET @saved_cs_client     = @@character_set_client */;
 /*!40101 SET character_set_client = utf8 */;
-CREATE TABLE `t_mail` (
+CREATE TABLE `t_sys_mail` (
   `idx` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '自增id',
-  `unikey` varchar(255) CHARACTER SET utf8 COMMENT 'unikey',
+  `unikey` varchar(255) CHARACTER SET utf8 DEFAULT '' COMMENT 'unikey',
   `subject` varchar(255) CHARACTER SET utf8 NOT NULL DEFAULT '' COMMENT 'subject',
   `content` text NOT NULL DEFAULT '' COMMENT '消息内容',
   `recipients` text NOT NULL DEFAULT '' COMMENT '收件人列表',
   `attachments` varchar(255) CHARACTER SET utf8 NOT NULL DEFAULT '' COMMENT '附件',
+  `tag1` int(11) NOT NULL DEFAULT '0' COMMENT 'tag1',
+  `tag2` int(11) NOT NULL DEFAULT '0' COMMENT 'tag2',
   `sendtime` int(11) NOT NULL DEFAULT '0' COMMENT '发送时间',
   `expiretime` int(11) NOT NULL DEFAULT '0' COMMENT '过期时间',
+  `user_reg_start_time` int(11) NOT NULL DEFAULT '0' COMMENT '用户注册开始时间',
+  `user_reg_end_time` int(11) NOT NULL DEFAULT '0' COMMENT '用户注册结束时间',
   `createtime` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),