diff --git a/server/admin-next/src/client/fields.ts b/server/admin-next/src/client/fields.ts
index 9df5cde9..c2d9d387 100644
--- a/server/admin-next/src/client/fields.ts
+++ b/server/admin-next/src/client/fields.ts
@@ -145,7 +145,8 @@ export const fileFields = [
 ];
 
 export const mailFields = [
-  createTextField('userId'),
+  createTextField('to'),
+  createTextField('subject'),
   createTextField('host'),
   createNumberField('port'),
   createBooleanField('secure'),
diff --git a/server/admin-next/src/client/i18n.ts b/server/admin-next/src/client/i18n.ts
index 205c1ca0..196760dc 100644
--- a/server/admin-next/src/client/i18n.ts
+++ b/server/admin-next/src/client/i18n.ts
@@ -128,6 +128,8 @@ export const i18n: TushanContextProps['i18n'] = {
             name: '邮件历史',
             fields: {
               userId: '用户ID',
+              to: '目标邮箱',
+              subject: '邮件主题',
               host: '发信主机',
               port: '发信端口',
               secure: '是否加密',
diff --git a/server/models/user/mail.ts b/server/models/user/mail.ts
index 36fd3daf..c77b514a 100644
--- a/server/models/user/mail.ts
+++ b/server/models/user/mail.ts
@@ -49,15 +49,6 @@ export class Mail extends TimeStamps implements Base {
   _id: Types.ObjectId;
   id: string;
 
-  /**
-   * 发送到的用户id
-   */
-  @prop({
-    ref: () => User,
-    index: true,
-  })
-  userId: Ref<User>;
-
   /**
    * 发件人邮箱
    */