The most important feature of email newsletters is their ability to get to the targeted group. If it is not targeted to the right set of recipient, there is an increased probability that your email newsletter will end up in the spam folder. Hardly anybody would like to get unsolicited marketing messages in their inbox. There is a high probability that the users will add unwanted email newsletters to their spam filters than going through the trouble of unsubscribing them for the time being. Email newsletter can also be promoted as an intra-organization marketing tool. It helps in sending organization or targeted group announcements or reminders.