diff --git a/opendkim/README b/opendkim/README
index b579845..b9bc78d 100644
--- a/opendkim/README
+++ b/opendkim/README
@@ -255,6 +255,12 @@ your configuration file:
 You could put "file:" in front of the filename for the KeyTable just to be
 precise, but "file:" is assumed if the value starts with a "/".
 
+If you'd like to simply sign everything with the same key and selector you can
+use the following opendkim.conf configuration:
+
+  SigningTable  csl:*=all
+  KeyTable      csl:all=example.com:selector:/usr/local/etc/dkim/keys/key
+
 
 TESTING
 =======