The success of a campaign does not only depend on the quality of your contacts. Above all, it depends on how you use the data: if you make use of a creative director, a copywriter, a graphic designer and have notions of marketing, you will certainly give a considerable boost to your chances of success.
Communicating is a great art, but you have to do it responsibly. Especially if we want to cultivate the most precious gift for doing business between people who do not know each other: CONFIDENCE.