On this side of the pond, rumour has it that marking something REFUSED means the sender has to pay the postage when we send the junk back.

Until I heard this, I used to slap on a (homemade) UNSOLICITED JUNK MAIL, RETURN TO SENDER sticker before returning junk mail.

OZPost also makes a fortune delivering unaddressed mail - those of us who rent PO Boxes can tick the box that sez. words to the effect of NO JUNK MAIL when paying for our POBs, but I'm not aware of any such option for home post boxes.

We can also get NO JUNK MAIL/NO ADVERTISING MATERIAL stickers from civic-minded organisations, but some folks delivering junk mail don't see it as junk, so deliver it anyway.

good luck in stopping the flood of junk mail.

sandra