There is nothing more frustrating than purchasing a list for direct marketing from a company only to find that the people that you send you advertisements to are no longer living there or no longer fit your segmentation and so on. While you cannot control what you purchase from a company, what you can do is ensure that you only purchase lead lists from companies that regularly conduct data cleansing. Data cleansing is the process used to ensure that all of the information in a database is correct and a reputable company will do that to ensure that you are only purchasing the best lists.
