PSN Core Services


We’re developing this agreement, PSN (Public Services Network) Core Services, in collaboration with the Government Digital Service (GDS). It will provide the core services which allow government to send information electronically and securely between departments, arms length bodies, the health service, the police service and local government. 

This new framework will replace two core services currently provided by the Government Convergence Framework (GCF Core Services), these are:

  1. PSN Domain Name System (PSN DNS) services which reconcile website names and their underlying IP addresses. *
  2. Email Relay services which enables correct email delivery both between PSN users and to the wider internet.**

*The DNS maintains a directory of website names (known as domain names), for example, and translates them into IP (Internet Protocol) addresses. This is necessary because computers or machines do not understand website names and need the IP address in order to access the website. The PSN is the government’s high-performance network, which helps public sector organisations work together, reduce duplication and share resources.

** The Email Relay services transport email messages in between different email hosting services, servers and/or domains.

Customer engagement

Customers using the existing GCF Core Services agreement will be updated on the position of the migration and what actions they need to take through the GCF Core Services exit newsletter each quarter

 If you have any questions email

Supplier engagement

Please express your interest in this framework by emailing and include:

  • organisation name
  • contact name
  • job title of contact 
  • contact phone number
  • contact email
  • organisation website link.

Important links

Prior Information Notice (PIN) Read PIN
Contract Notice in OJEU Not available yet
Download tender documents Not available yet


Activity Estimated dates
Publication of OJEU 11 February 2020
Framework award June 2020