[jackling]

Not sure how it is in America, but in Canada you can post a note inside your mailbox stating that you don't want unaddressed mail.

https://www.canadapost-postescanada.ca/cpc/en/personal/consu...

[rkagerer]

I'm tried that, I've even plasterd the inside of my mailbox with a mini-poster directing to not leave it, and it hasn't worked at all.