A customer wants to mail fewer than 5,000 flat-sized mail pieces in a specific area. Which service should they use?

The most appropriate service for mailing fewer than 5,000 flat-sized mail pieces in a specific area is Every Door Direct Mail - Retail. This service is designed for businesses and individuals who want to send advertisements, flyers, or other promotional materials directly to targeted neighborhoods without the need for mailing lists. Every Door Direct Mail allows customers to send up to 5,000 pieces at a time while reaching specific areas efficiently and affordably.

Additionally, this service simplifies the mailing process by allowing users to select delivery routes based on postal carrier routes, which makes it ideal for local promotions. It also offers significant cost savings compared to traditional mailing methods, especially for bulk mailings like flat-sized pieces.

The other options either do not meet the criteria for this volume of mail or serve different purposes altogether, making Every Door Direct Mail - Retail the best choice for the customer’s needs.