Guardian Digital Success Stories



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Nothing is more important to us than our customers. Every day, Guardian Digital solutions help organizations around the world secure their most business-critical email assets from hackers and phishing attacks.

We are proud to have loyal customers, many of whom have been with us for more than a decade. They’ve shared their success stories with us and we’d like to share them with you and others in the IT community — we want your business to have the same email safeguards and peace of mind that others have found with Guardian Digital.

Whether it’s the comprehensive engineered security designed by our engineers, the cost-effectiveness of open source software, or our unparalleled customer support, Guardian Digital customers across the world rely on our expertise and ability to deliver value.


Protection Against Advanced Persistent Email Threats, Phishing Attacks for Hospitality Chain

World’s Largest Hotel Family

Best western 2


  • On-premise appliances were ineffective in protecting users and were not being updated quickly enough
  • Lack of knowledge about email security
  • Lack of time to devote to managing the security of business email accounts


  • An email security solution that prioritize visibility and accessibility
  • A solution that ensures that business email is not interrupted
  • A highly reliable, secure and cost-effective open-source email security gateway
  • Exceptional customer support


  • EnGarde Cloud Email Security: control email usage and eliminate spam
  • Managed Services: monitor email and network activities, troubleshoot and resolve technical incidents
  • Professional Engineering Services: flexibility to customize EnGarde to specifically fit the demands of the corporation


  • Quick resolution to issues or inquiries
  • Increased productivity due to uninterrupted email traffic and the reduction of spam email
  • Elimination of phishing and BEC attacks

Email-related Attacks: A Serious and Growing Threat to Businesses in the Hospitality Industry

hospitality services company protects users from business email compromise and phishing attacks

Because the hospitality industry requires so much information to process customer transactions — including addresses, phone numbers, emails, credit card details, etc. -- security is a major concern in the hospitality industry. Hotels are the target of a myriad of data breaches and cyber attacks, which can have devastating consequences for these businesses. For instance, Marriott recently experienced an astronomical data breach, which compromised the personal information of 500 million guests. As a result of the high degree of risk that email-related attacks pose to businesses in the hospitality industry, effective email security is a necessity  for these companies and yet most don’t employ the top email security solutions available.

The world’s largest hotel family, with over 4,100 hotels and motels worldwide and more than 1,400 corporate users, recognized the importance of investing in a top-notch email security solution early on. They were looking for an advanced email security gateway that would provide comprehensive protection against the sophisticated and evolving email threat landscape. Additionally, this prominent hospitality brand wanted a fully-managed solution with exceptional customer support, which would provide them with the convenience they needed to focus on optimally running their business without having to worry about the security of their email accounts.

Next-generation Open-source Email Security

Prior to beginning their 18-year relationship with Guardian Digital, this hospitality powerhouse was relying on Symantec to secure their email. Operations managers were extremely dissatisfied with Symantec’s solution from the beginning. The system wasn’t effective in protecting their users and keeping their business email up and running without interruption. Moreover, they needed a state-of-the art cloud-based email security gateway to replace their outdated on-premise appliances. They also required a  solution that provided a greater level of visibility into its operations. For many reasons, Guardian Digital EnGarde Email Security Gateway was exactly what they had been searching for. Enterprise Email Operations Managers loved the advantages that an open-source email security solution offered compared to proprietary alternatives in terms of security, reliability, flexibility and cost-effectiveness. Managers were convinced that Guardian Digital’s unrivaled open-source email security gateway was the obvious answer to address their security concerns. Eighteen years later, the continually growing hotel chain could not be more satisfied with their decision to switch to Guardian Digital.

For over a decade we’ve counted on Guardian Digital’s solutions for a more secure and reliable mail environment. I’m grateful for their years of great service — the staff is professional and prompt and has always had a quick resolution to our mail inquiries or any other issues.

- Sheldon Huey, Senior Engineer, Best Western Hotels & Resorts

Exceptional Engineering for Customized Protection

Guardian Digital has worked with this highly-successful organization to create a customized solution that provides executives with special protection developed specifically for them. This protection is designed to provide an increased level of security as a result of executives’ involvement. Recently, Guardian Digital was able to assist this hospitality giant in correcting a mail delivery issue involving their own internal mail system, for which the company was extremely grateful. “For the last 16+years, we have worked with your team and had quick resolution to mail enquiries or issues. Your staff has always been professional and prompt, providing the extra effort to explain issues at hand and even recommended solutions for more secure and reliable mail environment. My personal thanks for your years of great service," writes Sheldon Huey, Senior Engineer, Best Western Hotels & Resorts.