Updating Your Direct Mail List
When people respond to your direct mail piece and you remove them from your list, how do you prevent mailing them again when you get a new list?
For example, let's say I mail to absentee owners. Over the next month, I get responses (deals, take me off your list, etc.). Next month, I pull an absentee list again. Some new people are on the list and some of those on the previous list are not on the new one. I want to make sure that I don't mail again to those that responded to a previous mailing.
I appreciate your input!