Bad Addresses = Undeliverable Mail
What is undeliverable mail?
Undeliverable mail is mail that has an incomplete, invalid or illegible address. Undeliverable As Addressed (UAA) mail is a waste of time and money for both the Mailer and the Postal Service.
Common Causes of UAA Mail?
We can't cover every situation, but here are a few common errors we see leading to a bad address:
- The ZIP Code is missing or incorrect.
- Misspelled street name that the USPS software can't decipher. (is Hhnry // should be(sb) Henry)
- Incorrect street range. (is 12345 //sb 2345)
- Improper or missing suffix. The data has Street when it should be Road. If no suffix is given and there is a Court and Avenue in the same Zip Code - the software cannot make a decision.
- The streeet name does not exist in the ZIP Code given.
- The address does not include a required directional as in N. Main St
- The address is lacking an important bit of info - APT, Building, Suite, Unit, etc.
How can I fix my Bad Addresses?
ABS has sophisticated software that allows us to compare a bad address to the original source, the master list provided by the USPS. The software will provide us with the data to make address corrections and notify us of any non-delivery issues.




