Defense Message System and Associated Legacy Message Processing Systems   [open pdf - 159KB]

"This instruction provides policy, guidance, responsibilities, and information regarding the use, operation, and management of the Defense Message System (DMS)...The policy outlined in this instruction supports the DMS goal of taking full advantage of new and evolving technology through the use of commercial-off-the shelf components and products, while reducing program costs and staffing requirements and maintaining mission-essential levels of service and security."