How address validation works
Every address is checked against USPS data before we print, so your mail arrives the first time.
Cxnch validates every address on every job automatically. There's nothing to turn on.
- CASS: standardizes and corrects each address against the current USPS address database.
- NCOA (National Change of Address): catches recipients who have moved, using up to 48 months of USPS forwarding data.
- DPV (Delivery Point Validation): confirms the address is a real, deliverable USPS delivery point.
- ZIP+4 and suite details are added when they're missing.
Corrections are applied before printing. Addresses that can't be validated are flagged so you can review them before you submit. This process eliminates about 99% of address-related returns.
Related: Fixing an invalid or undeliverable address · USPS address data quality standards