We have currently blocked Poland as a test because most of our spam is coming from there. However, some are coming from the UK . If this works we will have to block Latvia, Ukraine, Romania and Bognor Reigis as these are other current Spam hotspots for us. OK not Bognor LOL.
We may also have to block Basildon, though not quite sure as to why as I can't remember!
We have blocked the following countries as 90% of the Spam crap comes from there..