Narrow down the search results by excluding records based on certain criteria. To do this, split the search into two steps. Example: Customers in a specific postcode area BUT NOT those who have already received the newsletter
Enter the first search and click on the dropdown triangle next to Search, then select New search. The number of records found (search results) is displayed in the bottom left-hand corner of the search window.
Remove your original search criteria, enter the new search criteria and click on the dropdown triangle next to Show, then select Narrow down search. The new number of search results is displayed again in the bottom left-hand corner of the search window.
Repeat the process as often as needed until all search criteria have been specified.