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Bought too much pottery in Switzerland to fit in your suitcase? Just mail it — Swiss Post is genuinely reliable and it'll beat you home. Do the same in a place where national post has a real reputation for losing international packages, and you may never see that carefully chosen souvenir again. This isn't about the destination being "bad" — it's simply whether the mail system is built for it. A quick check before you overbuy tells you whether to ship it, courier it, or just make room in your carry-on.