diff --git a/server/adminserver/task/taskmgr.go b/server/adminserver/task/taskmgr.go
index 9d3da2e1..bd6ebcf6 100644
--- a/server/adminserver/task/taskmgr.go
+++ b/server/adminserver/task/taskmgr.go
@@ -51,11 +51,16 @@ func (this *taskMgr) syncSysMail() {
 			}
 		}
 	}()
+	lastOutTick := q5.GetTickCount()
 	for true {
 		this.pullSysMail()
 		this.syncSysMailCond.L.Lock()
 		this.syncSysMailCond.Wait()
 		this.syncSysMailCond.L.Unlock()
+		if q5.GetTickCount() - lastOutTick > 15 {
+			lastOutTick = q5.GetTickCount()
+			f5.GetSysLog().Info("taskMgr lastSyncSysMailIdx:%s", this.lastSyncSysMailIdx)
+		}
 	}
 }
 
@@ -79,6 +84,9 @@ func (this *taskMgr) pullSysMail() {
 					this.lastSyncSysMailIdx = idx
 				}
 			}
+			if ds.NumOfReaded() > 0 {
+				this.saveLastSyncSysMailIdx()
+			}
 		})
 }
 
@@ -126,3 +134,24 @@ func (this *taskMgr) writeMail(ds *f5.DataSet) bool {
 		})
 	return ok
 }
+
+func (this *taskMgr) saveLastSyncSysMailIdx() {
+	f5.GetGoStyleDb().Upsert(
+		constant.MAIL_DB,
+		"t_param",
+		[][]string{
+			{"param_name", constant.PARAM_NAME_LAST_SYNC_SYS_MAIL_IDX},
+		},
+		[][]string{
+			{"param_val1", q5.ToString(this.lastSyncSysMailIdx)},
+		},
+		[][]string {
+			{"param_name", constant.PARAM_NAME_LAST_SYNC_SYS_MAIL_IDX},
+			{"param_val1", q5.ToString(this.lastSyncSysMailIdx)},
+		},
+		func (err error, lastInsertId int64, rowsAffected int64) {
+			if err != nil {
+				f5.GetSysLog().Info("saveLastSyncSysMailIdx err:%s", err)
+			}
+		})
+}