diff --git a/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java b/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java
index 2cd4b40..e941ad6 100644
--- a/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java
+++ b/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java
@@ -108,6 +108,8 @@ public class HttpClient5AdapterServiceRest extends HttpClient5AdapterServiceSupp
 	public static final String AUTH_TOKEN = "AUTH_TOKEN";
 	public static final String HTTP_HEADER_SETTING = "HTTP_HEADER_SETTING";
 
+	public static final String NON_DELIVERY_GROUP = "NON_DELIVERY_GROUP";
+	
 	public static final String PAYLOAD_PARAM_NAME_CLIENT_ID = "client_id";  // jwhong
 	
 	static final String DJB_ROOTLESS_ARRAY = "{ \"DJB_ROOTLESS_ARRAY\" : ";
@@ -135,6 +137,12 @@ public class HttpClient5AdapterServiceRest extends HttpClient5AdapterServiceSupp
 		String bizCode = "";
 		String headerGroupName = prop.getProperty(HEADER_GROUP);
 		String relayResponseHeaderKeys = prop.getProperty(HEADER_KEYS, "");
+		
+		// 전송 대상에서 제외할 그룹명(콤마로 다건 지정 가능)
+		String[] nonDeliveryGroups = StringUtils.split(
+				StringUtils.trimToEmpty(prop.getProperty(NON_DELIVERY_GROUP)), ",");
+		if (nonDeliveryGroups == null) nonDeliveryGroups = new String[0];
+
 		useAdapterToken = StringUtils.equalsIgnoreCase(prop.getProperty("ADAPTER_TOKEN_USE_YN", "N"), "Y");
 		String authorizationHeaderName = prop.getProperty("ADAPTER_TOKEN_HEADER_NAME", "Authorization");
 		
@@ -253,23 +261,38 @@ public class HttpClient5AdapterServiceRest extends HttpClient5AdapterServiceSupp
 			}
 		}
 		
-		if(dataObject instanceof ObjectNode) {
-			if (dataObject != null && StringUtils.isNotBlank(headerGroupName)) {
-				httpHeader = ((ObjectNode)dataObject).get(headerGroupName);
-				((ObjectNode)dataObject).remove(headerGroupName);
+		if (dataObject instanceof ObjectNode) {
+			ObjectNode node = (ObjectNode) dataObject;
+			if (StringUtils.isNotBlank(headerGroupName)) {
+				httpHeader = node.get(headerGroupName);
+				node.remove(headerGroupName);
 			}
-		} else if(dataObject instanceof JSONObject) {
-			if (dataObject != null && StringUtils.isNotBlank(headerGroupName)) {
-				httpHeader = ((JSONObject)dataObject).get(headerGroupName);
-				((JSONObject)dataObject).remove(headerGroupName);
+			for (String nonDeliveryGroup : nonDeliveryGroups) {
+				if (StringUtils.isNotBlank(nonDeliveryGroup)) node.remove(nonDeliveryGroup.trim());
+			}
+		} else if (dataObject instanceof JSONObject) {
+			JSONObject json = (JSONObject) dataObject;
+			if (StringUtils.isNotBlank(headerGroupName)) {
+				httpHeader = json.get(headerGroupName);
+				json.remove(headerGroupName);
+			}
+			for (String nonDeliveryGroup : nonDeliveryGroups) {
+				if (StringUtils.isNotBlank(nonDeliveryGroup)) json.remove(nonDeliveryGroup.trim());
 			}
 		} else if (dataObject instanceof Document) {
-			Document doc = (Document)dataObject;
-			if (doc != null && StringUtils.isNotBlank(headerGroupName)) {
-				Element root = doc.getRootElement();
-				Element httpHeaderElement = root.element(headerGroupName);
-				root.remove(httpHeaderElement);
-				httpHeader = httpHeaderElement;
+			Element root = ((Document) dataObject).getRootElement();
+			if (root != null) {
+				if (StringUtils.isNotBlank(headerGroupName)) {
+					Element httpHeaderElement = root.element(headerGroupName);
+					if (httpHeaderElement != null) root.remove(httpHeaderElement);
+					httpHeader = httpHeaderElement;
+				}
+				// element(null) 은 dom4j 내부에서 NPE 가 발생하므로 반드시 blank 검사 후 조회한다
+				for (String nonDeliveryGroup : nonDeliveryGroups) {
+					if (StringUtils.isBlank(nonDeliveryGroup)) continue;
+					Element nonDeliveryGroupElement = root.element(nonDeliveryGroup.trim());
+					if (nonDeliveryGroupElement != null) root.remove(nonDeliveryGroupElement);
+				}
 			}
 		}