What are you doing about all the non-opt-in customers?

Hi



I take it that on your signup pages you have a deals or promo email check box to opt in for these deals… only about 20% of people actually signup so what do you do about the bulk of people who do not opt in?



Many of these customers probably just buy once so they are in your DB but have not opted in to get an email from you again so… they just sit in your DB for ever?



Also for the people who are opted in, when you send them a deal or general sales letter what percentage of people actually buy from you again?



Thanks