The important point is that you send one piece of mail and MailCall automatically sends copies to everyone subscribing to that MailCall service. As an example, lets assume that a small group of family members consisting of a father, his daughter and his son established a MailCall service using the name Smith . MailCall makes it more convenient than doing it yourself. Sure, you may be a wizard with your newsreader, but other members of your group are probably not. With MailCall, everyone doesn't have to keep track of the internet mailing address of everyone else in the group.
Members can even change their address without needing to inform everyone else.
MailCall provides a simple convenience to increase your communications. This convenience becomes more important the larger the group. A grown family has members scatter around the country or the world. With MailCall they write one email message and everyone in the family gets the message to read at their own time and convenience. A club publishes a newsletter which it simultaneously sends to the its MailCall.