Recently, I packaged "Datovka" for Fedora. It's GUI application for access to Czech Databox (AKA Datové schránky) - an electronic communication interface endorsed by the Czech government. There is also python-dslib library for accessing the databox programatically. It was implemented by CZ.NIC. You can also access the databox from WWW interface now as it was recently redesigned to work without Windows plugin, but this GUI application and library could bring you more comfort and automation possibility.