I did some research and you can send a letter to the post master to request they stop delivering for certain addresses. Seems there’s a service for this too

https://www.paperkarma.com/product/paperkarma-subscription/

> Mail Withheld From Delivery. An addressee may request his or her postmaster, in writing, to withhold from delivery for a period not exceeding 2 years any foreign letter or printed matter bearing a specified name or address appearing on the outside. Such mail is marked “Refused” by the Post Office™ and treated as undeliverable.

https://about.usps.com/what/business-services/delivery-growt...