You can request junk mail, including bulk unaddressed mail be excluded. And reject delivery requiring your carrier to pick it up and dispose of it.
What the post office should enforce is properly labeled envelopes. Watermarks like "response required", "official correspondence", "winning x enclosed", " final notice" should be chargeable/fineable when not legitimate.
How? Last I checked Every Door Direct Mail (EDDM) cannot be opted out of.
https://faq.usps.com/s/article/Refuse-unwanted-mail-and-remo...
I'm pretty sure that both EDDM and specific bulk mail senders can be blocked.
There was a long-standing rejection applied to pornographic materials, based on the recipients own assessment based on "I know it when I see it", though that loophole may have been closed.
From the old Junkbusters site, there are a Form 2150 and 1500 which can be filed against any sender.
https://web.archive.org/web/19970713104642/http://www.junkbu...
I'm only finding the form 1500, here:
https://about.usps.com/forms/ps1500.pdf
You can also directly contact bulk senders through the DMA mail preference service, Valpack, RedPlum, and others. See one listing of these here:
https://www.huffpost.com/entry/how-to-stop-junk-mail_n_5b27b...
The From 1500 is the take-off-and-nuke-it-from-orbit option, however.
My carrier just started leaving it on the ground in front of my door. Including all that spam addressed to nobody. Even though I repeatedly opted out of that stuff.
At least where I live, the post office primarily serves as a spam distribution agency, and they take that mission very seriously.
There is no way to tell USPS to not deliver junk mail to you.
not in general: my wife is a letter carrier part time for USPS, and the overwhelming 2 problems they face are people never getting around to it being convenient, and Amazon shipping huge packages via USPS.
Regarding convenience, mail gets recalled and addressees have to be seriously inconvenienced to retrieve it. this isn't a punitive thing, but a logistics issue.