Tried to order a few sheets of LSD internationally to good ol' Australia, a few got through... then nothing; no love letter, knock on the door; nothing.
I've always had success domestically with a variety of substances. Is there any chance domestic mail will be screened, or the local post workers notified due to previous suspicions ? would only be ordering acid + powder <1g.
Peace
I'd stick with domestic for Australia. Too many people have their shit confiscated by customs.