Add support for "recipient_canonical_maps"
diff --git a/manifests/server.pp b/manifests/server.pp
index 7f92a91..1bbff0d 100644
--- a/manifests/server.pp
+++ b/manifests/server.pp
@@ -81,6 +81,7 @@
   $smtp_use_tls = false,
   $canonical_maps = false,
   $sender_canonical_maps = false,
+  $recipient_canonical_maps = false,
   $relocated_maps = false,
   $extra_main_parameters = {},
   # master.cf