: Your mailer is addressed to generic labels like "Local Postal Customer".
The most common way people "get a list" through the post office is by using Every Door Direct Mail (EDDM). This service allows you to send mail to every home and business on a specific carrier route without needing individual names or addresses. buying mailing list from post office
If you already have a list and need the Post Office to fix it, they offer specific paid Mailing List Services : : Your mailer is addressed to generic labels
While the USPS itself doesn't sell lists, they partner with third-party vendors and offer tools like Click2Mail or NetPost where you can buy targeted custom mailing lists for your campaigns. buying mailing list from post office