Unsolicited mail can typically be divided into two categories:
PaperKarma is effective with the former, but no one can do anything about the latter case. This is actually a product of the USPS called Every Door Direct Mail (EDDM). We need legislation to get rid of it.
PaperKarma handles most magazines, catalogs, credit card offers, yellow pages, etc. very well.
Coupons from local grocery stores or the local pizza chain don’t work as well – though we’ve seen exceptions.
Even when we can’t contact the company automatically, we’ll still locate their contact information in case you decide to contact them yourself.