I received a letter today. An old fashioned paper letter. So despite everything I said, it appears that the post does work (at least in Kabul). Of course, it did take over two months for the letter to arrive, but the important thing is that it did. For reference, here is my address, but do not send anything valuable as I doubt it would arrive.
Lev Weinstock (IT UNIT)
There was an attempt to abduct a foreigner in Kabul today.
This is my diary. My name is Lev and I work in Kabul for a non-governmental organization (dacaar.org).