I'm currently busy on a new project and I'm stuck with a search/newsletter possibility. The visitor can give up a search request by form. for ex. real eastate website. If a newsletter is send it should be send with the information for only that criteria. Let me give an example. If a user wants a house with 2 bedrooms he shouldn't receive a newsletter from us for houses with 3 bedrooms. I have been looking at the simplenews but I'm not sure if that the way.