diff --git a/pkg/m/msg.go b/pkg/m/msg.go
index d7766bb..d20d349 100644
--- a/pkg/m/msg.go
+++ b/pkg/m/msg.go
@@ -61,4 +61,4 @@ const (
 	MailRootUserName = "postmaster@fontree.cn"
 	MailRootPaw      = "Zaq12wsx"
 )
-const AllowDeviation = 5
+const AllowDeviation = 10