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What is CASS certified mailing software?

CASS certified mailing software ensures your address data follows formatting and standardization requirements set by the United States Postal Service (USPS).

Vendors with CASS certified address software not only perform validation checks to ensure addresses are correct, but they also qualify you for mailing discounts with the USPS for having the right format.

Benefits of CASS certified mailing software:

 

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