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Undeliverable is Unacceptable: Undeliverable addresses are costing you way more than you think

You have an address: 10 ½ Main Street.

I had an actual client that had a lot of undeliverable mail and wasn’t qualifying for discounts, but it was still getting delivered, and it didn’t make sense.

I found a pattern. The issue was because it was in their systems as: 10 AND HALF MAIN STREET.

The fraction was spelled out.

So, the software that qualifies an address for discounts… There is no “And A Half Main Street.” It doesn’t exist. It went encode, but I imagine the carrier guy having a good laugh about it and thinking, “That’s funny, I know where this is,” and getting it delivered. But because it is delivered, you don’t realize that this is an issue that is still a cost.

Because it is not standardized, you’re paying more postage for that piece that isn’t qualifying for discounts. And you’re paying that higher cost over and over again for all those pieces you keep generating and keep mailing.


Mailed messages are only effective if they actually reach the customer on time.

All customer communications are critical to a successful business – statements, notices, cards, and marketing pieces. Time, effort and technology are used to efficiently print, insert and mail the message. But it needs to get delivered. Mailed messages are only effective if they actually reach the customer on time. The US Postal Service (USPS) is implementing exciting and substantial changes to its address quality tools. Join us for a conversation on what’s changing, what’s at risk, and what leading organizations are doing differently.

WATCH: Undeliverable is Unacceptable: The True Costs of Failed Communications

Learn from industry experts and leading professionals who have seen successes with a strong address management program. 


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Since 2000, GrayHair Software has become the leading consumer and provider of postal data, processing over 125 billion data points annually.

GrayHair Software helps the largest financial services, banking, insurance, and healthcare organizations integrate more than 125 billion complex enterprise postal data points (including real-time mail tracking, address quality, and location intelligence) directly into core customer and prospect data platforms.

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