diff --git a/modules/services/mail/default.nix b/modules/services/mail/default.nix
index c462b289..87b604d0 100644
--- a/modules/services/mail/default.nix
+++ b/modules/services/mail/default.nix
@@ -94,7 +94,7 @@ in
     services.rspamd.extraConfig = ''
       actions {
         reject = null;
-        add_header = 10;
+        add_header = 6;
         greylist = 4;
       }
     '';