Our marketing department wants to purchase a mailing list to use to USPS mail postcard deposit account advertisements. The unfiltered list is long, so they have asked if it is ok to filter the list to reduce the number to make it more manageable since our bank is located in a very populated area. Options for the filter include by income, location, renter, homeowner, etc.. Are any of these filters permissible? What filters are not allowed? Is there FDIC guidance on this? What rule or reading material covers this?