Just got another load of junk delivered by the postie.

If I give then back to the postie and mark them return to sender, is the postie obliged to take them?

or

Can you mark them return to sender and shove them back in the post office postbox.

Just got one today from readers digest. Massive envelope, telling me that I am in their draw. Must have cost them a fortune and total waste of paper, ink and all the other costs involved. Can't we get a ban on readers digest?