diff --git a/smartapps/smartthings/logitech-harmony-connect.src/logitech-harmony-connect.groovy b/smartapps/smartthings/logitech-harmony-connect.src/logitech-harmony-connect.groovy
index e3dda08..250eb58 100644
--- a/smartapps/smartthings/logitech-harmony-connect.src/logitech-harmony-connect.groovy
+++ b/smartapps/smartthings/logitech-harmony-connect.src/logitech-harmony-connect.groovy
@@ -823,8 +823,8 @@ def deviceHandler(evt) {
 }
 
 def sendToHarmony(evt, String callbackUrl) {
-	def callback = new URI(callbackUrl)
-  if(isIP(callback.host)){
+  def callback = new URI(callbackUrl)
+  if (callback.port != -1) {
   	def host = callback.port != -1 ? "${callback.host}:${callback.port}" : callback.host
   	def path = callback.query ? "${callback.path}?${callback.query}".toString() : callback.path
   	sendHubCommand(new physicalgraph.device.HubAction(
@@ -852,25 +852,6 @@ def sendToHarmony(evt, String callbackUrl) {
   }
 }
 
-public static boolean isIP(String str) {
-    try {
-         String[] parts = str.split("\\.");
-         if (parts.length != 4) return false;
-         for (int i = 0; i < 4; ++i) {
-             int p
-             try {
-               p = Integer.parseInt(parts[i]);
-             } catch (Exception e) {
-               return false;
-             }
-             if (p > 255 || p < 0) return false;
-         }
-         return true;
-    } catch (Exception e) {
-        return false;
-    }
-}
-
 def listHubs() {
 	location.hubs?.findAll { it.type.toString() == "PHYSICAL" }?.collect { hubItem(it) }
 }