Securing government email – GOV.UK

Central government organisations must follow this guidance for their email service to be considered secure by the rest of government. Local government should follow it. It’s useful for the wider public sector.

Whether your email service is provided in-house or by a commercial provider, read this guidance to:

  • find out why and how to set up secure email services for a government organisation
  • understand our secure email assessment process
  • better understand what email traffic is being sent from your domain
  • deal with legacy email domain names

Understand government secure email policy, improve email security and pass a service assessment for secure cloud-based email services.

Source: Securing government email – GOV.UK