diff --git a/src/daemon/dispatcher.py b/src/daemon/dispatcher.py
index 5da768d..8d73093 100644
--- a/src/daemon/dispatcher.py
+++ b/src/daemon/dispatcher.py
@@ -698,6 +698,12 @@ class Dispatcher:
                                     )
                                     conn.commit()
                                     logger.info("Mail %s: marked failed (no_reply_found)", task_id)
+                                    # Mail 失败通知：通知发件人
+                                    try:
+                                        from src.daemon.mail_notify import notify_mail_failed
+                                        notify_mail_failed(db_path, task_id, "no_reply_found")
+                                    except Exception as ne:
+                                        logger.warning("Mail %s: failed to send no_reply_found notification: %s", task_id, ne)
                                 return
                             finally:
                                 conn.close()