Crown Commercial Service (CCS) intends to establish a framework for the provision of Public Services Network (PSN) core services which allow government to send information electronically and securely. The framework will replace two core services currently provided by the Government GSI Convergence Framework (GCF), made available under 2 Lots: PSN Domain Name System (DNS) services and PSN email relay (including mail hygiene) services. The framework will be used by or on behalf of the whole of the UK public sector and their associated bodies and agencies, the voluntary sector, charities and/or other private organisations acting as managing agents or procuring on behalf of the public sector delivering services of a public nature.