To resolve the issue:
- Globally validate addresses in the Data Health Center prior to generating the mailing.
- Ensure your mailing meets the requirements set by the United States Post Office.
- Continue with the mailing options.
If you are unable to validate your addresses or if your mailing does not meet the Post Office's bulk mailing standards, uncheck the option to CASS certify addresses and continue with your mailing or contact firstname.lastname@example.org for AddressAccelerator purchasing information.