diff --git a/examples/spring-mail-integration-demo/pom.xml b/examples/spring-mail-integration-demo/pom.xml
index 6b2b9b0a..ed8dbc9e 100644
--- a/examples/spring-mail-integration-demo/pom.xml
+++ b/examples/spring-mail-integration-demo/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.2.1.RELEASE</version>
+		<version>2.3.4.RELEASE</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java b/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java
index 98b82c57..abdf6183 100644
--- a/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java
+++ b/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java
@@ -67,11 +67,8 @@ public class IntegrationConfig {
                         , mapping -> mapping.subFlowMapping(true, sub -> sub
                                 .transform(messageTransformer, TRANSFORM_METHOD_NAME)
                                 .handle(m -> {
-                                    val isImportant = m.getHeaders().get(IS_IMPORTANT_MESSAGE, Boolean.class);
-                                    if (isImportant != null && isImportant) {
-                                        System.out.println("Как будто посылаем письмо: " + m.getPayload());
-                                        //mailSender.send((SimpleMailMessage) m.getPayload());
-                                    }
+                                    System.out.println("Как будто посылаем письмо: " + m.getPayload());
+                                    //mailSender.send((SimpleMailMessage) m.getPayload());
                                 })
                         )
                         .subFlowMapping(false, IntegrationFlowDefinition::nullChannel)
diff --git a/examples/spring-mail-integration-demo/src/main/resources/application.yml b/examples/spring-mail-integration-demo/src/main/resources/application.yml
index 604b3bc3..81517b8f 100644
--- a/examples/spring-mail-integration-demo/src/main/resources/application.yml
+++ b/examples/spring-mail-integration-demo/src/main/resources/application.yml
@@ -12,7 +12,7 @@ spring:
     generate-ddl: false
     hibernate:
       ddl-auto: none
-    show-sql: true
+    show-sql: false
 
   mail:
     host: smtp.mail.ru
diff --git a/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/src/main/resources/application.yml b/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/src/main/resources/application.yml
index 00e977d8..9f524cd3 100644
--- a/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/src/main/resources/application.yml
+++ b/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/src/main/resources/application.yml
@@ -11,4 +11,4 @@ spring:
     show-sql: false
 
   rabbitmq:
-    addresses: "192.168.99.100"
\ No newline at end of file
+    addresses: "localhost"
\ No newline at end of file
diff --git a/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/src/main/resources/application.yml b/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/src/main/resources/application.yml
index 5f611b88..c4bce31a 100644
--- a/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/src/main/resources/application.yml
+++ b/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/src/main/resources/application.yml
@@ -15,7 +15,7 @@ spring:
     show-sql: true
 
   rabbitmq:
-    addresses: "192.168.99.100"
+    addresses: "localhost"
 
   mail:
     host: smtp.mail.ru