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

A Bidder webinar to walk through the PSN Core Services bid pack was held on Tuesday 25 February 2020.  The slides are available to download here.

To receive broadcast messages for this procurement, and ask and view clarification questions, you must be registered on the eSourcing tool.  Instructions on how to register are available in the bid pack.

Important links

Prior Information Notice (PIN) Read PIN
Contract Notice in OJEU Read notice
Download tender documents Download


Activity Estimated dates
Bidder webinar 25 February 2020
Deadline for Bid submissions 23 March 2020 at 3pm
Framework award June 2020