added email on failure

jenkinsfile

@@ -18,10 +18,25 @@ pipeline {
             sshPublisher(publishers: [sshPublisherDesc(configName: 'centnas', transfers: [sshTransfer(cleanRemote: false, excludes: '', execCommand: '', execTimeout: 120000, flatten: false, makeEmptyDirs: false, noDefaultExcludes: false, patternSeparator: '[, ]+', remoteDirectory: '/$JOB_NAME', remoteDirectorySDF: false, removePrefix: '', sourceFiles: 'HelloWorld-amd64*')], usePromotionTimestamp: false, useWorkspaceInPromotion: false, verbose: false)])
             // Cleaning WorkSpace
             cleanWs()
-            // send Mail
-            //Send To person to make commit emailext body: '$DEFAULT_CONTENT', recipientProviders: [culprits()], subject: '$DEFAULT_SUBJECT', to: 'bramm.p11@gmail.com'
-           //Send To static addres emailext body: '$DEFAULT_CONTENT', subject: '$DEFAULT_SUBJECT', to: 'bramm.p11@gmail.com'
             }
         }
     }
+     post {  
+         success {  
+             echo 'Build successful'  
+         }  
+         failure {
+             // Send To person to make commit
+             //emailext body: '$DEFAULT_CONTENT', recipientProviders: [culprits()], subject: '$DEFAULT_SUBJECT'  
+
+             // Send To static addres 
+            emailext body: '$DEFAULT_CONTENT', subject: '$DEFAULT_SUBJECT', to: 'bram@bprieshof.nl'
+         }  
+         unstable {  
+             echo 'Build unstable'  
+         }  
+         changed {  
+             echo 'Pipeline has changed'
+         }  
+     } 
 }