Anyone you like open the mailbox and find it full of advertising, especially if such advertising does not fit the profile of the consumer. This supposes one expense in both time and resources spent in the manufacture and distribution of brochures, in the patience of the potential client. The distribution of advertising by junk mail constitutes one of the pillars of the promotional marketing, and done properly is an important means of communication with consumers. For this reason, it is vitally important make sure that the message we send is in the interest of the client, maximizing sales opportunities. The message we want to convey must be direct and personalized as possible. This can be achieved by extracting information from a database of clients. Direct marketing is the branch of marketing which is in charge of getting consumer offerings that are deemed appropriate for him or her. The final product is an envelope which includes a letter on behalf of the customer and offers more possibilities with finish in sale for each case. In this way we will have the best chances of selling our product or service.