Creating a job that always sends an email on job completion in Jenkins

def emailTrigger = {
  email {
    subject "\$PROJECT_DEFAULT_SUBJECT"
    body "\$PROJECT_DEFAULT_CONTENT"
    recipientProviders {
      'hudson.plugins.emailext.plugins.recipients.ListRecipientProvider'{}
    }
    attachBuildLog false
    compressBuildLog false
    replyTo "\$PROJECT_DEFAULT_REPLYTO"
    contentType "project"
  }
}


job = freeStyleJob('emailtest') {
    steps {
       shell('ls')
    }

    configure { project ->
        project / publishers << 'hudson.plugins.emailext.ExtendedEmailPublisher'(plugin: 'email-ext@2.68') {

            recipientList 'recipientEmail@somewhere.com'
            configuredTriggers {
                'hudson.plugins.emailext.plugins.trigger.AlwaysTrigger' emailTrigger
            }
            contentType 'text/html'
            defaultSubject "Email Subject"
            defaultContent "<p>Email Content</p>"
            attachmentsPattern{}
            presendScript '\$DEFAULT_PRESEND_SCRIPT'
	          postsendScript '\$DEFAULT_POSTSEND_SCRIPT'
            attachBuildLog false
			      compressBuildLog false
			      replyTo 'youremail@replyto.com'
            from 'youremail@from.com'
            saveOutput false
            disabled false
        }
    }
}