Summary:
The video details an investigation into a piece of undeliverable mail brought to the 2026 National Postal Forum. Adam analyzed the piece to determine why it was marked as unclaimed and returned after being mailed over four years prior. He found:
- Initial Analysis: The item was a standard first-class letter with a fully validated address and barcode at the time of mailing.
- Address Discrepancies: When re-examined, the address no longer coded correctly; it was associated with a new zip code and a different city name due to changes in municipal boundaries.
- External Findings: Research conducted outside of USPS tools indicated that the property, which appeared to be a small cabin or vacation home, was sold shortly before the letter was originally mailed.
- Likely Cause: Adam concluded that no Change of Address (COA) was filed. The mail likely sat at a local post office or the delivery location because the recipient did not visit the property to retrieve it. Eventually, the postal service was required to process the piece, resulting in its return as unclaimed.
Transcription:
For the 2026 National Postal Forum, GrayHair offered up a little investigation work. If you had some undeliverable addressed mail that you couldn’t figure out why it happened, bring it and we’d investigate it. That didn’t take long. At the forum on Sunday, right away, someone handed me a piece they had gotten to help investigate what happened with it.
So, first thing I looked at, I see the reason it was returned was “unclaimed”. That generally points to certain types of addresses and/or certain types of mail pieces. Well, it wasn’t one of those types of mail pieces; this was a regular first-class letter. Look at the address—it wasn’t one of the obvious reasons that are higher probability for unclaimed. It’s like, okay, this is already getting interesting.
And then I noticed the really big reason why this piece was so interesting. The cancellation mark on the piece indicated that it had been cancelled on December 21st, 2021, over four years prior, and it had just now gotten returned. All right, now I’m really interested.
So, I got to look. First thing, I need to know more about this address. It had a barcode on it and was fully validated, this was a perfectly good address. Great. Let’s take a look. Let’s find the characteristics on the address. Except when I ran it, it no longer CASS-coded. Not only did it no longer CASS-code, but obviously city boundaries had changed; it was now associated with a different city name and a different zip code.
Okay. Well, since it no longer coded, I couldn’t check through the USPS’s tools some of the characteristics about the address that I was interested in. So, at this point, I got to go outside of the USPS to try and look for additional information about the address and about the association of the intended recipient with that address.
What I found out was the property had actually been sold just prior to this piece being mailed. It also was essentially like a cabin in the woods, a small home, so it easily could be just, you know, a weekend cabin kind of investment. So, most likely, a COA had not been filed. So that’s why it wasn’t intercepted. It went to delivery, whatever delivery was for that location. Could have been a door slot in the cabin and it just was sitting there because nobody came and visited the cabin. Or it could have been a throwback back to the local post office where it’ll sit there so long as the PO box is paid for and so long as the PO box isn’t full.
And that second scenario is one that is a little more probable because of the reason of “unclaimed”. It was sitting there, nobody ever eventually came and claimed it, and it’s time to—they have to send it back.
So, it was definitely an interesting piece, but because it was old, it was a little hard to investigate and confirm exactly what happened. But most likely, that’s what happened. It was just sitting there in a proper location waiting for someone to pick it up all this time. And then eventually, space demanded action on the piece and the USPS returned it because nobody ever came in to pick it up.
Related Content:
- Understanding Address Quality: Top 10 Q&A – especially Q1, Q2, Q8, and Q9, which discuss physically returned pieces, old COAs, and why mail can still be returned even when an address once validated.
- Understanding Address Quality Management Hub – the content reflects real‑world thinking, based on decades of working with USPS standards, address data, and production mailing environments.
- For a broader look at the principles behind these examples, see GrayHair’s Address Quality Series, which covers fundamentals and advanced concepts of address data quality.
