Can you get into trouble for putting junk mail into those "business reply" envelopes?

I keep getting these emails that say to do it as it will help you get rid of your junk mail (obviously you don't put anything in it that has your name on it), charge the company money and help the Postal Service make money as well. I just want to know if these companies could try to get me for fraud or whatever. I don't want any trouble, but if the USPS can make some money and I can get rid of junk without having to throw it away or recycle it myself, I'm all for it!Can you get into trouble for putting junk mail into those "business reply" envelopes?
I love that. I send all pre approved spam back in their envelope with a no thanks. Someone is getting paid to open envelopes and the post office needs the business. I think what you are doing is a public service and I plan to follow your shining example.Can you get into trouble for putting junk mail into those "business reply" envelopes?
I usually boxed up a cinder block, taped the reply envelope on top, taped the letters "Y O U A R E G H O U L S" on the reply info and put that in the envelope, then took the whole mess to the post office. Now a friend who sent moose nuggets did get into trouble since it is illegal to send fecal matter by post office.



I am sure they could sue you, because almost anyone can sue almost anyone else about anything, but there is no law that you are violating. More than likely, a lawsuit would be branded frivolous.



But return of the envelope without any junk mail still triggers a charge from the post office, and it is what I started doing when I ran out of junked engine parts and broken building materials.Can you get into trouble for putting junk mail into those "business reply" envelopes?
Nope. I used to send back their trash along with more of my own.

I simply wrote REFUSED OFFER on the reply card and added it with my trash inside the envelope. Note: you cannot use the envelope as a mailing label on a package of trash.