Your subscriber list is collection of e-mail
addresses representing contacts, customers and/or members of your
organization. The list is permission-based, meaning that each person
in your list has told you that they want to receive e-mail messages
from you. You can add members to your subscriber list by entering
individual subscriber information directly or by importing an
existing customer list.
Be sure to use the Opt-In Magnet to attract subscribers by
creating a sign-up form on your Web site. The sign-up form lets
visitors to your site join your mailing list directly from your Web
site.