Royal Mail in the UK call them 'door-to-doors' and allow you to opt out here: https://personal.help.royalmail.com/app/answers/detail/a_id/293 https://personal.h

Royal Mail in the UK call them 'door-to-doors' and allow you to opt out here: https://personal.help.royalmail.com/app/answers/detail/a_id/293 https://personal.help.royalmail.com/app/answers/detail/a_id/...