diff --git a/mail_system/templates/postfix/main.cf b/mail_system/templates/postfix/main.cf
index c4222be..75a2762 100644
--- a/mail_system/templates/postfix/main.cf
+++ b/mail_system/templates/postfix/main.cf
@@ -95,6 +95,10 @@ smtpd_relay_restrictions =
 # rspamd
 
 
+# useful for log analysis
+enable_long_queue_ids = yes
+
+
 # convenience settings
 maximal_queue_lifetime = 6w  # default is 5d
 bounce_queue_lifetime = 6w