NCOALinkTM tell me if an address is deliverable?
NCOALinkTM will give you move update information and usually provides a ZIP + 4. DSF2 determines the deliverability of address records. ZIP + 4 validates addresses based on valid house number ranges but not the actual number. DSF2 validates based on exact house number and apartment number. 25. I processed my file through NCOALinkTM and have received returned mail pieces. Why didn’t NCOALinkTM catch these undeliverable addresses? It is estimated that only 66.9% of mail is deliverable as addressed. The remaining percentage has some form of addressing deficiency which could affect deliverability. Endorsed mail and First-Class Mail can be forwarded or returned to the mailer. Standard Mail (Third Class) is discarded. NCOALinkTM will reduce the amount of undeliverable mail through Address Standardization and ZIP Correction as well as through running Move Update, but will not eliminate it. Some examples of returned mail NCOALinkTM will not correct are: Forwarding Order Expired, No Such Number
