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EnGarde’s Innovative Protection Features


Guardian Digital has designed a security-as-a-service email protection system that blocks the most sophisticated threats to privacy and data integrity to your organization today. Our email security solution provides a sophisticated defense to today’s sophisticated threats. We deliver digital peace of mind with:

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A scalable and customizable cloud-based system

shield icon Policy-based encryption throughout
shield icon  A resilient and real-time learning open-source design
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Innovative zero-day threat protection

shield icon  A fully-managed system, which reduces your in-office support
shield icon  Phishing, spambot, and spoofing attack protection

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Guardian Digital enables secure email for thousands of small, medium and enterprise customers
Commerce Bank
Guardian Digital has become a valued partner of Commerce Bank due to their depth of security and continued dedication in assisting us to protect our business critical communications.
Jill Brungardt, Information Security Consultant, Commerce Bank

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Open source is the most effective method for developing secure and reliable software on the planet. Because it relies on a transparent exchange of information, technology, and collaborative development, open source is inherently more secure by design. Contrary to proprietary “black box” software, open-source methodology allows the innovative online “hive mind” to quickly find bugs, develop groundbreaking software, and the technologies that can quickly counter online threats.

Real-time Threat Protection Solution

Because Guardian Digital’s solutions are built on our advanced cloud platform that combines open-source technologies with the security expertise of our engineers, the result is a system that updates rapidly and learns over time to protect your business email from advanced and persistent threats. Our worldwide network of systems works cohesively to collect billions of data points using big data analytics, our own algorithms, and machine learning to update systems with the latest real-time information. This reduces the exposure to zero-day threats as well as the largest spam campaigns around the globe.  

Open-source development also allows Guardian Digital to customize your email security platform to your specific needs. Better yet, it allows us to do this without jeopardizing your bottom line.

Our Open-Source Commitment  

We are proud to be a citizen of the open-source community. We know, from decades of open-source development expertise, that using open-source methodology for securing digital information creates a more robust and secure platform precisely because its core components have been subjected to rigorous peer review for decades.

Since its inception in 1999, Guardian Digital has recognized that the open-source model provides the best approach to the problem of maintaining security in the relentlessly dynamic environment of the internet.

The ideals that the open-source community follows and hold dear — community engagement, openness, collaboration — are also the ideals that Guardian Digital holds among its main tenets. It’s a reflection of an environment that is highly collaborative, and where the best solution always comes out ahead. In this environment — where flexibility, choice, and an affordable costs are built into the process — Guardian Digital customers win.

Our collaborative open-source development approach:

  • Fosters rapid innovation as a competitive advantage, with ideas coming from multiple independent sources
  • Provides design diversity as a strategy
  • Promotes an inclusive environment and values diverse perspectives
  • Improves reliability through much larger deployments
  • Reduces the total cost of ownership

Best in Class Email Security Solution

Guardian Digital is the first email security company to take the best-in-class tools of the Linux community and integrate them into enterprise email solutions with an intense focus on security and unrivaled customer support.

We have engineered an unprecedented level of open-source security that has made Guardian Digital a pioneer in business email protection and trusted by clients worldwide for almost twenty years.

Guardian Digital continues to innovate, while constantly improving our existing software and service offerings. Towards that end, we created, the internet's central source of news, insights, security advisories and other information about Linux and open-source security issues. Check out its re-launched new look, here.

Debunking Open-Source Myths

Myths and misconceptions surround open source — find out why it’s the most innovative and secure way to engineer software.

6 Reasons Why You Want Open-Source Email Security for Your Business

Innovative, secure, affordable: open source is how you safeguard your business email. — Guardian Digital sponsors the go-to online source of information, updates, and other news about Linux and open source.