diff --git a/roles/spamassassin/files/local.cf b/roles/spamassassin/files/local.cf
index cb7d302..4f9fd06 100644
--- a/roles/spamassassin/files/local.cf
+++ b/roles/spamassassin/files/local.cf
@@ -173,6 +173,7 @@ whitelist_from *@chichiclothing.com
 whitelist_from dmarcreport@microsoft.com
 
 # Blacklist manuel
+blacklist_from *@*.monster
 blacklist_from *@joskyman.de
 blacklist_from *@autosuggest-business.info
 blacklist_from *@*.cc