diff --git a/app/services/mail_store.py b/app/services/mail_store.py
index d36711d..00d9a00 100644
--- a/app/services/mail_store.py
+++ b/app/services/mail_store.py
@@ -168,7 +168,7 @@ class MailStore:
                     recipients=','.join(recipients) if isinstance(recipients, list) else recipients,
                     body_text=body_text,
                     body_html=body_html,
-                    received_at=datetime.datetime.now()
+                    received_at=datetime.now()
                 )
                 
                 # 提取验证码和验证链接（如果有）
@@ -255,7 +255,7 @@ class MailStore:
                 
             if mark_as_read and not email.read:
                 email.read = True
-                email.last_read = datetime.datetime.now()
+                email.last_read = datetime.now()
                 db.commit()
                 
             # 获取附件信息