diff --git a/target/rspamd/local.d/composites.conf b/target/rspamd/local.d/composites.conf
new file mode 100644
index 00000000..ab58f45d
--- /dev/null
+++ b/target/rspamd/local.d/composites.conf
@@ -0,0 +1,18 @@
+# In addition to `policies_group.conf`, this file contains
+# symbols that are applied when certain other symbols are
+# applied (or not applied).
+#
+# We are especially interested in the `policy` field, because
+# there are cases in which `remove_weight` is undesirable.
+
+# When neither SPF, DKIM, nor DMARC are available, we want
+# to increase the base score so we apply at least greylisting.
+AUTH_NA {
+  score = 2.5;
+  policy = "leave";
+}
+
+AUTH_NA_OR_FAIL {
+  score = 1;
+  policy = "leave";
+}