Mail.dat® File Validation: How to Make Sure Your Files are Valid
Mail.dat files are valuable tools for mailers, mail service providers, logistics companies, and the United States Postal Service® (USPS®). Mail.dat files contain virtually all the information regarding a specific mailing with the exception of names and addresses. Mail.dat files may be used to communicate information about mailings, edit and manipulate mailing information, analyze mailings for drop shipping or other work-sharing discounts and combined mailing opportunities, and to facilitate the generation and transmission of postal documentation. As valuable as this tool is, however, it is not much use if the Mail.dat file is not "valid".
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