In spite of the growth of social networks and IM, emails continue being the preferred method of interaction in business relationships. They're also employed by site visitors to contact the administrator or even for individual purposes if you need to save some data sent by a friend for future use. The e-mail service is much more than simply exchanging messages - it features filters, forwarding, autoresponders, e-mail lists, etc, that is why it will be practical if you are able to handle all of these things intuitively and easily. A useful application that gives you quick access to various services will save you time and it can make the control over your email communication an enjoyment, not a burden. In this way, you'll be able to concentrate on the actual content of your emails, rather than losing time to perform small system tasks from hidden menus.