enable store each Email Traffic

database/model/model.go

@@ -78,9 +78,4 @@ type Client struct {
 	Security string `json:"security"`
 	Total      int64  `json:"total" form:"total"`
 	ExpiryTime int64  `json:"expiryTime" form:"expiryTime"`
-}
-type ClientStats struct {
-	Email string `json:"email"`
-	Up         int64  `json:"up" form:"up"`
-	Down       int64  `json:"down" form:"down"`
-}
+}