A lot depends on which country you are in, some countries like the US link names to addresses so if you use a fake name or the name of a previous occupant the mail service may not deliver the mail or they may redirect it. I have had a lot of people PM me after I posted in this thread asking for advise, I should make it clear I am no authority on setting up safe drop addresses in countries all over the world, I only really know some options for my own country.