diff --git a/blacklist_sender_domain.map b/blacklist_sender_domain.map
index ab8d415..117097a 100644
--- a/blacklist_sender_domain.map
+++ b/blacklist_sender_domain.map
@@ -14,3 +14,4 @@ chrislewisuk.co.uk
 akabomedia.co.uk
 lemonlightprovideo.net
 cims.nyu.edu
+cascade.app