diff --git a/src/main/java/com/eactive/ext/kjb/ums/KjbUmsService.java b/src/main/java/com/eactive/ext/kjb/ums/KjbUmsService.java
index 0f321b1..659e73b 100644
--- a/src/main/java/com/eactive/ext/kjb/ums/KjbUmsService.java
+++ b/src/main/java/com/eactive/ext/kjb/ums/KjbUmsService.java
@@ -35,6 +35,8 @@ import java.util.function.BiConsumer;
 
 @Slf4j
 public class KjbUmsService {
+    public final static int[] ALLOW_CHANNELS = { MessageCode.Channels.KAKAO_ALIMTALK.getValue() };
+
     private final static String SEND_URL = "/ums/openapi/send";
     private final static String CONTENT_TYPE = "application/json; charset=utf-8";
     private final static String AUTHORIZATION_FMT = "Bearer %s";
@@ -69,6 +71,17 @@ public class KjbUmsService {
         this.property = property;
     }
 
+
+    public static boolean isAllowChannel(MessageRequest message) {
+        for (int channel : ALLOW_CHANNELS) {
+            if ((message.getMessageCode().getChannels() & channel) == channel) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+
     public boolean send(MessageRequest messageRequest) {
         if (messageRequest == null) {
             throw new IllegalArgumentException("messageRequest is null");