diff --git a/Source/non_ip/reject-drop.conf b/Source/non_ip/reject-drop.conf
index e923c0a5..59df2739 100644
--- a/Source/non_ip/reject-drop.conf
+++ b/Source/non_ip/reject-drop.conf
@@ -25,5 +25,8 @@ DOMAIN-SUFFIX,getui.com
 DOMAIN-SUFFIX,gepush.com
 DOMAIN-SUFFIX,easytomessage.com
 
+# Grammarly Telemetry
+DOMAIN-SUFFIX,f-log-extension.grammarly.io
+
 DOMAIN-SUFFIX,undefined
 DOMAIN-SUFFIX,null