diff --git a/database/maildb.sql b/database/maildb.sql
index cc2c7b1a..e93d40ff 100644
--- a/database/maildb.sql
+++ b/database/maildb.sql
@@ -42,6 +42,7 @@ CREATE TABLE `t_mail` (
   `mailid` bigint NOT NULL COMMENT 'mail id',
   `subject` mediumblob COMMENT 'subject',
   `content` mediumblob COMMENT '消息内容',
+  `to` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT '收件人',
   `attachments` varchar(255) CHARACTER SET utf8 NOT NULL DEFAULT '' COMMENT '附件',
   `type` int(11) NOT NULL DEFAULT '0' COMMENT 'type',
   `sub_type` int(11) NOT NULL DEFAULT '0' COMMENT 'sub_type',
@@ -57,6 +58,42 @@ CREATE TABLE `t_mail` (
 /*!40101 SET character_set_client = @saved_cs_client */;
 /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
 
+--
+-- Table structure for table `t_recipient_group`
+--
+
+DROP TABLE IF EXISTS `t_recipient_group`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t_recipient_group` (
+  `idx` int(11) NOT NULL AUTO_INCREMENT COMMENT '自增id',
+  `group_id` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT '分组id',
+  `group_name` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT '分组名',
+  `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`)
+) ENGINE=InnoDB AUTO_INCREMENT=10000 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+/*!40101 SET character_set_client = @saved_cs_client */;
+/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
+
+--
+-- Table structure for table `t_recipient_list`
+--
+
+DROP TABLE IF EXISTS `t_recipient_list`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t_recipient_list` (
+  `idx` int(11) NOT NULL AUTO_INCREMENT COMMENT '自增id',
+  `group_id` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT '分组id',
+  `account_id` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT '账号id',
+  `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`)
+) ENGINE=InnoDB AUTO_INCREMENT=10000 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
+/*!40101 SET character_set_client = @saved_cs_client */;
+/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
+
 --
 -- Table structure for table `t_account_data`
 --