diff --git a/server/adminserver/model/system/mail.go b/server/adminserver/model/system/mail.go
index ec2d3dbc..f2b1543d 100644
--- a/server/adminserver/model/system/mail.go
+++ b/server/adminserver/model/system/mail.go
@@ -16,14 +16,14 @@ Recipients:
 Attachments:
    [
 	 {
-	   "item_id": 100001,
-	   "item_num": 100
+	   "itemid": 100001,
+	   "itemnum": 100
 	 }
    ]
 */
 
 type Mail struct {
-	UniKey *string `gorm:"column:unikey" json:"unikey"`
+	UniKey *string `gorm:"column:unikey;<-:create" json:"unikey"`
 	MailId int64 `gorm:"primaryKey;column:mail_id;<-:create" json:"mail_id,string"`
 	MailType int32 `gorm:"column:mail_type;<-:create" json:"mail_type"`
 	Subject string `gorm:"column:subject" json:"subject"`
@@ -34,8 +34,8 @@ type Mail struct {
 	SendTime int32 `gorm:"column:sendtime" json:"sendtime"`
 	UserRegStartTime int32 `gorm:"column:user_reg_start_time" json:"user_reg_start_time"`
 	UserRegEndTime int32 `gorm:"column:user_reg_end_time" json:"user_reg_end_time"`
-	Tag1 int32 `gorm:"column:tag1" json:"tag1"`
-	Tag2 int32 `gorm:"column:tag2;" json:"tag2"`
+	Tag1 int32 `gorm:"column:tag1;<-:create" json:"tag1"`
+	Tag2 int32 `gorm:"column:tag2;<-:create" json:"tag2"`
 	ExpireTime int32 `gorm:"column:expiretime" json:"expiretime"`
 	CreateTime int32 `gorm:"column:createtime;<-:create" json:"createtime"`
 	ModifyTime int32 `gorm:"column:modifytime" json:"modifytime"`