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Sending Secure Emails

To ensure data is not intercepted when sending emails externally, the Council have been working with the Welsh WARP and other public sector organisations to introduce a secure email service.

Email is a primary communication tool and a key enabler for exchanging data. It allows collaborative working and faster/more intelligent responses to citizens needs. However, emails can sometimes contain personal and sensitive data which could result in reputational and financial damage to the Council if lost.

In a world where we want to handle data responsibly and meet GDPR needs, and with the current GCSx services ending soon, a new method of email security and assurance has been developed.

UK government have issued a directive that states:

If you currently use a gsi-family domain name (,, or you must replace it with a government domain like,, or by March 2019 using TLS 1.2 or later. Further details here:

Working Together - New TLS secured email

Each organization below has implemented the latest Transport Layer Security (TLS) method so emails can be sent securely using encryption.

TLS is a protocol which provides privacy between communicating services. When a Swansea server and client communicate, well-configured TLS ensures that no third party can eavesdrop or tamper with any message.

Basically, staff can send emails to anyone at these organisations (using their name and the domain addresses shown below in bold) knowing they will be secure and free from interception. You don't need to have a GCSx email account or type the word "ENCRYPT:" in the subject heading of an email anymore to send emails encrypted.

So for example, if you were sending an email to Barbara Davies in Cardiff Council, her email address will have to have the domain name at the end of the email for the TLS method to work as shown:

Action for
Action on Hearing
At Home Eye
Blaenau Gwent County Borough
Bridgend County Borough
Caerphilly County Borough or
Cardiff or
Cardiff Credit
Cardiff Institute for the
Care &
Ceredigion County or
Carmarthenshire County or
Central South Consortium Joint Education
Coastal Housing
Conwy County Borough
Court of Protection
Denbighshire County or
Department of Works and
Ethnic Minorities & Youth Support Team
Family Housing
Flintshire County or
Gwynedd or
Home or or
Isle of Anglesey County or
Local Government
Local Health
Merthyr Tydfil County Borough
Monmouthshire County
Neath Port Talbot County Borough or
Newport City
Pembrokeshire County
Powys County
Rent Officer or
Rhondda Cynon Taf County Borough or
Rhondda Cynon Taf
Secretary of State for the Home
Shared Resource Service
Swansea Bay Regional Equality
Swansea Carers
Swansea Young Single Homeless
Torfaen County Borough
Vale of Glamorgan or
Warwickshire County
Welsh or
Welsh or
Welsh Revenue
Western Bay
Wireless for the
WIT's Translation
Working links
Wrexham County Borough or
Dyfed Powys
North Wales
South Wales
Education or
Mid & West Wales Fire​​​​​
South Wales Fire
National Parks 
Brecon Beacons National
Pembrokeshire Coast National
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