MailFetcherService holds on to memory for each message until end of service run

  Message[] messages = folder.getMessages();

            log.debug("There are " + messages.length + " messages in the " + protocol + " folder");

            for (int i = 0; i < messages.length; i++)
            {
                try
                {
                    Message message = messages[i];
                    //handle message  (loads it from the server into memory
                }
                catch (Throwable t)
                {
                    log.error("Throwable: " + t, t);
                }
            }