diff --git a/index.js b/index.js
index b6c3b0e..7885f43 100644
--- a/index.js
+++ b/index.js
@@ -130,6 +130,13 @@ xmpp.on('chat', function(from, message) {
         return;
     }
 
+    if (config.globals.blacklists) {
+        blaclists = config.globals.blacklists.split(',');
+        if (blacklists.indexOf(from.toLowerCase()) >= 0) {
+            return;
+        }
+    }
+
     logger.info('Incoming message via XMPP ', {to: config.globals.jid, from: from, message: message});
 
     if (warming_up) {