First, to claim commercial Standard Mail and First-Class Mail prices, you MUST have checked the accuracy of ZIP Codes within the timeframes listed below. When you fill out and sign your postage statement you are certifying your mailing qualifies for the prices claimed.
Second, look at these statistics:
- 17% of Americans change addresses annually.
- 45 million people move each year.
- Approximately one out of every six families moves each year.
How many of these people are your customers or members?
Just because you buy or rent a list does not mean that the addresses are correct, checked, updated, or "certified." To make sure that you are getting a list with accurate addresses, ask about the National Deliverability Index (NDI) of the list. The NDI rates the percentage of addresses in a list that are deliverable. Use the NDI to target the address elements you need to get the delivery —- and postage price —- you want. For example, if you are targeting a specific 5-digit ZIP Code, look for an NDI of 100% for address element.