diff --git a/models/User.go b/models/User.go
index 8620e35..23cea1e 100644
--- a/models/User.go
+++ b/models/User.go
@@ -10,7 +10,7 @@ import (
 type User struct {
 	ID        int       `json:"id" gorm:"primary_key"`
 	Name      string    `json:"name"`
-	Email     string    `json:"email"`
+	Email     string    `json:"email" gorm:"unique;not null"`
 	Password  string    `json:"-"`
 	Slat      string    `json:"-"`
 	Admin     bool      `json:"admin"`
diff --git a/routers/sessions.go b/routers/sessions.go
index ce5f5ee..7b73390 100644
--- a/routers/sessions.go
+++ b/routers/sessions.go
@@ -63,7 +63,7 @@ func SessionsPost(w http.ResponseWriter, r *http.Request) {
 	// 使用Email獲取用戶
 	var user models.User
 	if err := configs.ORMDB().Where("email = ?", form.Email).First(&user).Error; err != nil {
-		w.WriteHeader(http.StatusUnauthorized)
+		w.WriteHeader(http.StatusNotFound)
 		w.Write([]byte("404 - User Not Found"))
 		return
 	}