diff --git a/src/daemon/ticker.py b/src/daemon/ticker.py
index 5c0adba..43ba38e 100644
--- a/src/daemon/ticker.py
+++ b/src/daemon/ticker.py
@@ -191,6 +191,19 @@ class Ticker:
                 logger.exception("Tick %d _general error", tick_num)
                 results["projects"]["_general"] = {"error": str(e)}
 
+        # 虚拟项目 _mail：飞鸽传书
+        mail_db = Path(self.registry.root) / "_mail" / "blackboard.db"
+        if mail_db.exists() and "_mail" not in active_projects:
+            try:
+                pr = await self._tick_project("_mail", {
+                    "id": "_mail", "name": "飞鸽传书",
+                    "status": "active", "source": "virtual",
+                })
+                results["projects"]["_mail"] = pr
+            except Exception as e:
+                logger.exception("Tick %d _mail error", tick_num)
+                results["projects"]["_mail"] = {"error": str(e)}
+
         logger.debug("Tick %d complete: %d projects", tick_num, len(active_projects))
 
         if self.on_tick_complete: