Add extra informational message when a failure occurs while sending an email from WebGoat to WebWolf.

webwolf/pom.xml

@@ -85,6 +85,10 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-test</artifactId>
+        </dependency>
     </dependencies>
 
     <build>