Your mailing list is essentially a database of the names and associated contact details of people whove elected to subscribe. When your list is small (i.e. less than 100 or so subscribers) its possible to store this??data in the address book of your email client (e.g. Microsoft Outlook) or your webmail client (Hotmail, Gmail etc). This is a popular choice among indie artists, as its easy and free.
But once your list begins to reach a significant size, youll find it becomes difficulty to manage ....

DIY Music Marketing Blog