diff --git a/config/site_settings.yml b/config/site_settings.yml
index d88950534..c14c096ad 100644
--- a/config/site_settings.yml
+++ b/config/site_settings.yml
@@ -505,7 +505,7 @@ posting:
   notify_about_queued_posts_after:
     default: 24
     min: 0
-  auto_close_messages_post_count: 200
+  auto_close_messages_post_count: 500
   auto_close_topics_post_count: 10000
 
 email: