Depends on what you call rarest (small country, less users etc.) but for me Iād say itās South Africa or Philippines Thereās also quite a list I only have sent 1 card to.
Armenia , Cuba , French Guiana , Ghana , Guernsey and Luxembourg . I also have a card travelling to Greece at the moment. But I consider all the countries where I send perhaps 1-2 cards per year rare. So this principle would make countries such as Bulgaria , Estonia , Lithuania , Portugal or Thailand rare for me.
Iāve sent twice to Turkey and once to India. Although, I feel as though the card to India doesnāt fully count because the person changed their address mid-way through and so it got automatically registered.
Other than that, Iāve also sent to Estonia, Hungary and Lithuania, which are ārareā for me, at least in comparison to how many cards Iāve sent to the US, Germany, Russia and China.
Unofficially, I just sent last week a card to Algeria! I hope it arrives
And my very first received card was from from Tanzania:
At the moment, I didnāt realize how rare that would become, but I was still incredibly excited to received such a beautiful card from a country I, admittedly, did not know much about. I still think about this card often (and still have it).