What You Should Know About List Rental Data Cards(1,657 words)

If your competitors are using a file, it should be a top consideration for testing. And if the mailer is using lists that currently are working for you, this also is a good indicator the list will work for you.

Take-away tip: Look at who currently and consistently is using the file. It's only meaningful if you know whom the list works for, not who may be testing or has tested it just once. In some cases, seeing the usage on a list can give you other test ideas.