European Union and spam

Spamming is a criminal offence in the entire European Union. It is illegal to send spam to or from: at be cy cz de dk ee es eu fi fr gr hu ie it lt lu lv mt nl pl pt se si sk and uk. Furthermore, mailinglist subscription requires a CONFIRMED opt-in.
This means that mail from the EU is less likely the contain spam than other mail.

Therefore a less strict method of spam filtering can be applied to mail from EU member states, resulting in less false positives