I never understood why you're allowed to just send as much mail as you want to people that didn't ask for it. The particularly egregious letters are labelled as

I never understood why you're allowed to just send as much mail as you want to people that didn't ask for it. The particularly egregious letters are labelled as important and with time sensitive information. We already have rules about how things need to be labeled and packaged to be shipped, so I think it could also be useful to have some system around colors or labels to clearly distinguish actually important or personal mail from marketing