How To Improve Mail Delivery Accuracy: CASS, NCOA & Address Verification

Undeliverable mail wastes money twice: you pay for printing and postage on pieces that never reach customers, and you miss the potential revenue from those missed contacts. For businesses sending thousands of pieces, even a 5% undeliverable rate can mean hundreds of dollars in wasted postage every mailing.

Use our free EDDM tool to select carrier routes and plan your campaign.

The good news: mail delivery accuracy is largely within your control. With proper address verification, NCOA processing, and list hygiene practices, you can reduce undeliverable mail to under 2% and ensure your marketing dollars reach actual customers.