A lot depends not only how big is your CMC database for Email distribution but also the quality of database, how old it is and whom it belong. It is important to understand how it is useful this database.
A lot depends on what kind of CMC database for email distribution you use how it is old and relevant but email distribution and CMC promotion continue to be one of the popular way of marketing.
The most important that real users will read this letters and take attention to e-mail distribution. Many people now do not read e-mal and cmc because there are a lot of spam their.