Wikipedia
De-Mail
De-Mail is a German E-Government communications service that makes it possible to exchange legal electronic documents between citizens, agencies, and businesses over the Internet. The project called Bürgerportal is realized by the German government in cooperation with private business partners in an effort to reduce communication costs of administration and companies.
The project was announced in 2008 and has been accepted by Bundestag and Bundesrat in early 2011. The De-Mail law (which serves as the legal basis for the service) went into effect on May 2, 2011.