It seems an odd thing to suggest that the Germans might have industrial policy sorted out, but stories about Daimler's option for staff to have email received while on leave automatically deleted as a matter of company policy are truly revolutionary. See for example http://www.theguardian.com/commentisfree/2014/aug/14/email-inbox-tyranny-out-of-office-reply-holiday.
Most holidays I check/read my email periodically (let's be honest - daily), despite being on holidays or just having a day off. The stress of the thought of coming home to piles of email, with no clear indication of who's dealt with what, or what is no longer relevant, has meant I have wasted many precious hours on holiday. I'm ashamed to admit I checked my work email in Paris in 2011.
This year, I took five weeks leave in April/May, and deleted my work email account from my iPad to commit me to not checking work email. My leave was equivalent to 22 working days once public holidays were subtracted. I came home to an inbox with 2200 unread emails - almost exactly 100 per day of leave - that took weeks of time to work through. It was hellish and mostly unproductive (like email more generally). But at least I hadn't wasted my precious holiday time dealing with dross. Daimler's policy sounds like pure heaven.