Hello! I'm using IMAP protocol with JavaMail and I need to change subject of some existing message that I've request from some open folder: Folder inbox = store.getFolder("Inbox"); inbox.open(Folder.READ_WRITE); Message [] messages = inbox.getMessages(); for (int i = 0; i < messages.length; i++) { Message message = messages[i]; message.setSubject(message.getSubject() + "[" + i + "]"); } inbox.close(false); But I've got an exception: javax.mail.IllegalWriteException: IMAPMessage is read-only. So teh question is: Is it possible to change of subject of existing message in folder?    More>>

			

			Folder inbox = store.getFolder("Inbox");
			

			inbox.open(Folder.READ_WRITE);
			

			Message [] messages = inbox.getMessages();
			

			for (int i = 0; i
			< messages.length; i++) {
			

			Message message = messages[i];
			

			message.setSubject(message.getSubject() + "[" + i + "]");
			

			}
			

			inbox.close(false);