The Deutsche Post is just about to introduce email that's guaranteed to reach the addressee. https://www.onlinebrief.de/ https://www.onlinebrief.de/ That would

The Deutsche Post is just about to introduce email that's guaranteed to reach the addressee. https://www.onlinebrief.de/ https://www.onlinebrief.de/ That would invite everyone to use e-mail rather than snail, except for the (iirc) ¢20 price tag per mail.