Doesn't matter if you mark that mail "return to sender"/"addressee unknown"/"does not live here", or if you report it to the USPS, or anything else you do. The

Doesn't matter if you mark that mail "return to sender"/"addressee unknown"/"does not live here", or if you report it to the USPS, or anything else you do. They just ignore you and continue to send it anyhow. (At least that's been my personal experience with this exact issue.)