NCOALinkTM on my file?
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 A class is normally discarded. NCOALinkTM will reduce the amount of undeliverable mail by Address Standardization and ZIP Correction as well as Move Update, but will not completely eliminate undeliverable mail.