I need to change the subject of an e-mail received, when I click on a button. I esseyer is the code below but unfortunately it yielded no results.
If you like it if you have any ideas I would appreciate it.
* Shows and chang the subject of the selected mail.
var msg = controller.getMsg();
var newSbj = "My String " + msg.subject;
controller._setSubject(null, msg, newSbj);
Thank you in advance.