With
ebay you can exclude bidders from individual countries or whole continents. I no longer sell to South America, Africa, any of the former USSR countries, most of Asia, or Italy. These are areas where either I've had personal problems with mail not getting there, or I know other dealers who've had problems. I've never had a problem with Canada or Europe (other than Italy). It can take a very long time to get things to Australia, but they're a patient lot and pretty understanding. I decided not to ship to Italy because my daughter lived there for a few years and found the mail service to be abysmal.