@PropertyUpdate(properties={"mail.smpt.host","mail.smpt.port","mail.smpt.user","mail.smpt.passwd","mail.smtp.properties"}) protected void onSmtpPropertiesChanged(){
  parseAdditionalPropertiesString();
  checkConnection();
}

@ PropertyUpdate ( properties = { "mail.smpt.host" , "mail.smpt.port" , "mail.smpt.user" , "mail.smpt.passwd" , "mail.smtp.properties" } ) protected void onSmtpPropertiesChanged ( ) { parseAdditionalPropertiesString ( ) ; checkConnection ( ) ; }
parses the smtp properties and checks whether a connection can be established .
