EPMS 2018 revised new version 2018.4 - Janusnet announces availability

As the deadline for the 2018 Protective Security Policy Framework (PSPF) approached (1 October 2020), the Email Protective Marking Standard (EPMS 2018.3) was updated to incorporate a special handling caveat for National Cabinet. Most Australians will be aware that the 'National Cabinet' was instituted as one of the responses to the COVID-19 pandemic. This collaboration between Federal and State governments has given rise to the need for this special handling requirement. To quote the Commonwealth Attorney General's Department regarding the need for the revised EPMS 2018.4:  

"This version aligns to changes to the Security Caveat Guidelines, approved by the National Intelligence Security Sub-Committee on 18 August 2020, to create a NATIONAL CABINET caveat for use with OFFICIAL: Sensitive and above."

The revision was announced on Friday September 25, 2020 and Janusnet has provided new configuration files from Tuesday, 29 September. The updated EPMS is due to be implemented by March 2020, with agencies starting to use this marking from 1 December 2020.  Janusnet recommends that Departments and agencies that need to use the NATIONAL CABINET caveat start testing as soon as possible, while other agencies should update their configurations to the most current version released October 1st, 2020. 

For more information see the  Changes in ther revised PSPF Policy 8: Infosec 08 Sensitive and security classified information v2018.4

Janusnet has coincidentally released Janusseal for Outlook 3.5.5 which will handle the NATIONAL CABINET caveat. 


  • Janusseal latest version: can be obtained from the download page.
  • EPMS2018.4 configuration files: available from the Australian Government page.
  • EPMS Validation Service: test your EPMS configuration by sending a test message to EPMS@janusnet.com

The Janusnet EPMS Validation Service is simple to use. Just send an empty email for each marking type and you will receive a response indicating if the protective marking is compliant with the 2018 EPMS. More instructions and advice is here