diff --git a/states/postfix/defaults.yaml b/states/postfix/defaults.yaml
index 09d76c6..99fbdd5 100644
--- a/states/postfix/defaults.yaml
+++ b/states/postfix/defaults.yaml
@@ -16,6 +16,7 @@ postfix:
       inet_interfaces: 'all'
       inet_protocols: 'all'
       mailbox_size_limit: '0'
+      maximal_queue_lifetime: 30d
       message_size_limit: '30480000'
       mydestination:
         - '$myhostname'