TOOLS
DSF2®
DSF2® is a comprehensive repository of over 165 million address records in the USPS address database.
Validate the deliverability of addresses to the specific delivery point.
DSF2® confirms that an address exists and is a valid delivery location, enhancing accuracy and reducing undeliverable mail.
This tool is crucial for precise mail routing and delivery.

Key Benefits
DSF2® primarily benefits saturation mailers, such as large companies with concentrated mailings. These users enjoy postal discounts, cost savings, and maximized revenue.
Utility companies, telecommunications companies, mail-delivered newspapers, and local periodical publishers also find value in this processing. But any mailer looking to optimize their mailings can benefit from this processing.
- Precise Address Identification – Accurately identify various address types, including Residential,
Business, Vacant, and Seasonal addresses. This precision enhances delivery accuracy and
streamlines communication logistics. - Cost-Efficient Mail Delivery – Qualify for High Density and Saturation Discounts, optimizing postal
expenses. This feature empowers businesses to efficiently reach their target audience while
managing costs effectively. - Enhanced Delivery Insights – Identify attributes like delivery type (Curb, Mail Slot, Cluster Box) for
improved recipient satisfaction and operational efficiency.
Explore DSF2® Resources
Learn more about DSF2® and GrayHair’s other address data quality cutting-edge tools to ensure your address data is accurate and up-to-date.
Preventing the Consequences of Undeliverable Financial Statements, Compliance Notices, and Renewals
There are significant direct and indirect costs when critical mail (financial statements, compliance notices, checks, credit cards, or renewal reminders) doesn’t reach the intended recipients. These communication failures extend far beyond mere inconvenience, impacting financial stability, customer trust, legal standing, and brand reputation.
DSF2 – GrayHair Product Sheet
DSF2 primarily benefits saturation mailers, such as large companies with concentrated mailings. These users enjoy postal discounts, cost savings, and maximized revenue. Utility companies, telecommunications companies, mail-delivered newspapers, and local periodical publishers also find value in this processing.
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