Well, no.. but why refuse junk mail?
That's a resource being sent to you.
It's ok to work out how to use it. Those junk flyers make great barbecue starters, birdcage or catbox liners, packing for when you ship an item, the unprinted backsides of the letters are good to use for shopping lists and small to do notes..
Local grade schools can sometime use the junk mail newsprint for kids arts classes when they have paper mache projects (I've called to ask if they have needs of anything and ended up dropping off reams of that to my nearby school's art teacher..)
The rest of it goes straight away into a dedicated paper recycling bin.
(I even take those ubiquitous plastic shopping bags to the Walmart drop off bins for them.)