It seems that everyday I'm receiving more and more solicitous emails mostly from the same companies, and although I've unsubscribed to some of those email senders, the same types of emails still keep coming constantly. Some of them indicated that it would take about 10 days before I stop receiving unwanted emails from them after I hit the Unsubscribe button. Why should it take that long? If I unsubscribe to something, the emails should stop coming immediately.