Today, high density mailings such as “marriage mail,” Advo type advertisements, saturation mail, periodicals, and catalogs often require manual handling by the postal authority. Other than saturation mailings, where every carrier stop gets the same article, these items must be addressed. Verification of production is often desired due to spoilage and damage during production, which requires rework by the mailer. The addition of a data controlled mail collation feeder to existing or new Postal Authority automation equipment or the like eliminates the need to manually handle these difficult mail types and eliminates the need to address specific items. The manual casing at the delivery is eliminated. The data processing system that controls the data controlled mail collation feeder will also perform delivery confirmation and may assess postage due.