Isode Server Software Solutions for the Military Industry

Since 2002, Isode has been developing and supporting commercial off-the-shelf (COTS) software for secure messaging. Our software is at the heart of great solutions, built in conjunction with our partners, for Military, Intelligence and Civil Aviation customers in over 150 countries.

Isode’s products include client, server and gateway software for Email Messaging, XMPP Instant Messaging, Directory and Constrained Networks.

Designed to work over both standard internet-quality links and over Constrained Network links (high-latency and/or low-bandwidth) such as SatCom, HF, VHF and UHF, Isode products are in service with Armies, Navies and Air Forces worldwide.

Email messaging services for use in constrained bandwidth environments

Isode provides email server, gateway and client products for military messaging using STANAG 4406, ACP127 and SMTP protocols, including gateways between these protocols following ACP145 and MIXER. Isode products are ideal for deployment in both standard and constrained bandwidth environments.

The company also provides clients, gateways and servers for deployment as part of a military email solution:

  • ACP127: M-Switch products provide full support for ACP127 and related protocols, including ACP126, ACP128, JANAP128 and DOI103S.something about BRASS.
  • STANAG 4406: Isode’s M-Switch X.400 includes full support for STANAG 4406 (including Annex E for Constrained Network Environments) and,
  • ACP145: Isode M-Switch MIXER can, together with M-Vault (an ACP133 military directory) be configured as an ACP145 Gateway to convert between national variants of S4406.
  • MMHS over SMTP: M-Switch SMTP can provide full military messaging capabilities over the industry standard STMP mail protocol.
  • Email Client: Isode’s Harrier web based military email clients is a modern interface to military messaging compatible with Isode’s server products and Microsoft Exchange.
  • STANAG 5066 Server: Isode’s Icon-5066 is a modem-independent STANAG 5066 server. It enables applications to work efficiently over HF Modems/Radios and to allow multiple applications to work simultaneously.

All Isode Email Server products can be deployed as a local MTA providing one or more of Isode’s supported protocols or as a gateway between any of the listed protocols, as well as SMTP and X.400.

Products are additionally optimised for operation in Constrained Network Environments including support for S4406 Annex E and ACP127 BRASS (Broadcast and Ship to Shore) deployments. Isode’s M-Switch SMTP and M-Switch MIXER also support CFTP (sometimes known as Battle Force Email/BFEM) for simple support of informal SMTP messaging for HF.

XMPP messaging products developed for military use

Isode supplies XMPP server, gateway and client products ideally suited to military deployments over both internet quality networks and constrained networks (low- bandwidth and/or high-latency links such as SatCom and HF Radio).

Isode provides clients, gateways and servers for deployment as part of a military XMPP solution:

  • M-Link User Server: Robust and scalable XMPP server.
  • IRC Gateway: Gateway between XMPP Multi-User Chat rooms and Internet Relay Chat (IRC) Channels.
  • XMPP Boundary Guard: M-Link Edge allows for the application of boundary controls on message traffic, either independently or in conjunction with a High Assurance Guard.
  • XMPP Messaging for Constrained Networks: Isode’s XMPP products for constrained network operations enable efficient use of 1:1 and multi-user chat over HF and SatCom networks.
  • Forms Discovery & Publishing: Publishing, share and subscribe for structured forms (such as MEDEVAC).
  • XMPP Client: Swift multi-platform XMPP client.

Instant messaging is becoming an increasingly important communication option for militaries, particularly for sharing communication with a large number of users with multi-user chat capabilities.

Voice and video communications are often impractical due to networking constraints and/or operational characteristics. Email or formal messaging is often too slow and cumbersome where information sharing and associated decision-making need to appen very quickly.

Directory services to support military messaging

Directory services are a critical military component, used for tactical and strategic systems. Military directories, standardised in ACP 133, are used to provide information services, support of military messaging, and as supporting infrastructure for other applications such as PKI (Public Key Infrastructure).

Isode provides all of the servers and management tools needed to build a military directory.

Directory Server: The M-Vault directory server is the core component of Isode’s offering for military directory, providing:

  • ACP133 Conformance
  • Directory Security & Strong Authentication
  • Replication & Distribution

Directory synchronisation with partner organizations using Sodium Sync.

Constrained network products for HF modems and radios

All of Isode’s products are optimised for use over constrained networks (low bandwidth and/or high-latency) such as SatCom and HF Radio. In addition, Isode produces a modem-independent STANAG 5066 server enabling applications to work simultaneously and efficiently over HF modems/radios.

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Press Release

Isode Provides Low-Bandwidth XMPP for NATO Arctic Tiger 2012

Arctic Tiger 2012, a major military excercise involving aircraft from several nations, took place out of Ørland airbase, Norway between 29 May - 7 June.

White Papers

XMPP Archive and Search

This whitepaper describes the new archive capability in M-Link, and how it enables searching of archive data by end users and operators.

Isode Limited

14 Castle Mews



TW12 2NP

United Kingdom

+44 20 8783 0203 +44 20 8941 4483

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Press Release

10 July 2012

Arctic Tiger 2012, a major military excercise involving aircraft from several nations, took place out of Ørland airbase, Norway between 29 May - 7 June.

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26 April 2012

Isode is pleased to announce that its 'M-Link' instant messaging and multi-user chat server software (based on the XMPP protocol) and 'Swift' desktop client software have been approved for inclusion on the US Department of Defense (DoD) unified communications approved product list (APL).

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14 November 2011

ACP 145 was specified to enable communication between CCEB Nations (Australia, Canada, New Zealand, UK, US) by defining a common interface standard for military messaging between nations.

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20 January 2011

Isode is pleased to announe that CEO Steve Kille will be speaking at the next meeting of the High Frequency Industry Association (HFIA) meeting in San Diego on 27 January 2011. His talk on 'XMPP over HF using STANAG 5066' covers an area that Isode has invested a lot of time in over the

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26 October 2010

The Coalition Warrior Interoperability Demonstration (CWID) is an annual demonstration that showcases information-sharing technologies that can be used by militaries and other government agencies to fill existing operational capability gaps. Initiated by the US, CWID includes participan

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8 August 2010

Apple’s recent update to the iPhone operating system (iOS 4) contains some updates to the device’s IMAP (the Internet standard Internet message access protocol) support. The RFCs now supported are: COMPRESS (4978) ESEARCH (4731) CHUNKING (3030) 8BIT

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14 July 2010

Isode have released a new white paper which looks at how M-Link, Isode's XMPP server is optimized for operation over constrained networks, including satcom, HF radio, and other radio links. The paper starts by looking at the benefits of using XMPP over constrained networks, and the key problems f

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28 January 2010

This is the first of a series of blog posts describing new features of Isode’s R14.6 release, scheduled for March 2010. IPv6 is the new version of IP. The major change relative to IPv4 (which is the version of IP most widely used) is the much larger address space. While many Isode produ

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8 April 2009

Isode will work with several leading companies to create a common XML security policy information file (SPIF) format. With the help of Cadmidium, Clearswift, CommPower, eB2Bcom, JSC, Nexor and SMHS, Isode hopes to encourage vendors to use a new system of security labels to exchange inf

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13 May 2008

In Isode's latest release, R14.2, support for Directory Access Control using Security Labels has been introduced. Security Labels provide an important mechanism for controlling access to information in many high security environments, and are also useful in environments with lower secur

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Regional Offices

Isode Limited

14 Castle Mews



TW12 2NP

United Kingdom

+44 20 8783 0203 +44 20 8941 4483

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