diff --git a/gamesrv/tienlen/scenepolicy_tienlen.go b/gamesrv/tienlen/scenepolicy_tienlen.go
index 7283010..5a249ae 100644
--- a/gamesrv/tienlen/scenepolicy_tienlen.go
+++ b/gamesrv/tienlen/scenepolicy_tienlen.go
@@ -591,8 +591,10 @@ func (this *SceneBaseStateTienLen) CanChangeTo(s base.SceneState) bool {
 
 // 当前状态能否换桌
 func (this *SceneBaseStateTienLen) CanChangeCoinScene(s *base.Scene, p *base.Player) bool {
-	if s.IsCustom() && s.GetNumOfGames() > 0 {
-		return false
+	if s.IsCustom() {
+		if s.NumOfGames > 0 && s.NumOfGames < int(s.TotalOfGames) {
+			return false
+		}
 	}
 	return !p.IsGameing() || s.GetDestroyed() || !s.GetGaming()
 }
diff --git a/worldsrv/addmail.go b/worldsrv/addmail.go
index 379b81d..dc48d36 100644
--- a/worldsrv/addmail.go
+++ b/worldsrv/addmail.go
@@ -41,6 +41,10 @@ func AddMail(param *AddMailParam) {
 		return
 	}
 
+	if param.SrcName == "" {
+		param.SrcName = "{\"zh\":\"系统\",\"vi\":\"GM\",\"en\":\"GM\",\"kh\":\"GM\"}"
+	}
+
 	opener := int32(1)
 	if param.SrcId <= 0 {
 		opener = 0