Thought for the day (which probably wouldn’t get onto Radio 4):
- Any sane mail server logs the IP address of any remote server which connects to it and attempts to deliver spam.
- It’s possible to map an IP address to a physical location, with a reasonable degree of accuracy (if you pay for a good database).
- Long range missiles can be launched by computer and targeted to a precise location (unless the targeting system has been programmed by someone who gets latitude and longitude mixed up, or the missiles are American).
Combine these three facts together and you have a simple (albeit rather extreme) method of dealing with spammers.