If you feel that you have been discriminated against at work, or you have experienced any other form of mistreatment at work, you may want to consider speaking with a lawyer. However, there are other resources available to help you address your concerns. The USPS has a human resources department that can help you address any complaints or concerns you may have.
You can contact USPS HR by phone or online. The contact information for both is provided below.
By phone: (800) 872-8777
Online: https://www.USPS.com/about-us/contact-us/
If you are uncomfortable speaking with USPS HR, you may also want to consider reaching out to your union representative. Unions can provide support and resources to members who have experienced workplace discrimination or other forms of mistreatment.