diff --git a/src/daemon/ticker.py b/src/daemon/ticker.py
index 65c2195..d021147 100644
--- a/src/daemon/ticker.py
+++ b/src/daemon/ticker.py
@@ -808,6 +808,26 @@ class Ticker:
 
                 elapsed = (now - start_time).total_seconds() / 60.0
                 if elapsed > timeout_minutes:
+                    # [v2.7.1] Mail 幻觉门控兜底：有回复 + working → done
+                    if project_id == "_mail":
+                        has_reply = self._mail_check_reply(task.id, db_path)
+                        if has_reply:
+                            conn = get_connection(db_path)
+                            try:
+                                ok = self._transition_status(
+                                    conn, task.id, "done",
+                                    agent="daemon",
+                                    detail={"reason": "mail_auto_done_recheck",
+                                            "elapsed_minutes": round(elapsed, 1)},
+                                )
+                                if ok:
+                                    reclaimed.append(task.id)
+                                    logger.info("Mail %s: ticker recheck found reply, marked done (%.1fm)",
+                                                 task.id, elapsed)
+                            finally:
+                                conn.close()
+                            continue
+
                     conn = get_connection(db_path)
                     try:
                         ok = self._transition_status(