Citizens Mailbox (ÜK) is the electronic client login and authorization system of the Hungarian Government. It enables the user to establish contact securely with entities providing electronic administrative processing and electronic public administration services.
This service is available for entities providing electronic processing and for their clients.
Natural persons may initiate the registration necessary for using the service personally at the entities of registration authorized to establish the Citizens Mailbox, or online in the possession of an electronic personal ID card. Entities providing electronic processing may use the identification service connected to the KAÜ - Central Client Authentication Agent service.
Related documentation can be found at https://szeusz.gov.hu
