Do you often experience returned mail labeled as "not at this address" or "no such person"? It might be due to your customers moving frequently. To avoid this problem, consider processing your addresses through the National Change of Address database. This will provide you with the most accurate move information on your customers and help ensure that you have their most up-to-date address. It is critical that your mail be delivered on time and to the correct address. Mail delays can be costly and in some cases they may even cost you money.