(Yes I follow the recommended process for dealing with it.)
UK: https://personal.help.royalmail.com/app/answers/detail/a_id/...
" It's my address but someone else's name
We deliver to addresses rather than names so our advice here would be to put a cross through the address and write on the item 'Not known at this address' or, 'No longer lives here' and post the item at your convenience - you won't need to apply any postage. Where applicable we will return the item to the sender hopefully allowing them to update their records. "
After we started doing this we got a couple of letters from the likes of Zurich Ltd addressed "to the householder" explaining that they'd love to stop sending us junk, but they have to, and if we could give them any details about where the old residents might be, that would be great. I wished them luck and told them the best we knew they'd moved abroad, permanently, possibly to Turkey.
Also postman doesnt give a fuck.