I need to design a database that will track an email list. This list must accomodate our list of 20,000 plus customers (we do a lot of sales on **** - not spam). I want to track various email campaigns to assure that I don't send duplicates. Each email will be a part of a larger group.<BR><BR>I thought of something like this:<BR><BR>ID | emailAddress | message1 | message 2 | message 3 | etc...<BR><BR>but find it difficult to expand as we add more messages. Could there be something relational that I could set up to accomodate?