We protect your users and your business against today's most advanced threats.
Coupled with our protection is the level of support you need to reduce management complexity, support overhead, and exposure to emerging future threats.
Phishing scams cost American businesses half a billion dollars a year. No business is immune from Business Email Compromise and attempts by criminal groups to compromise legitimate business e-mail accounts, it seems. There have been victims in all 50 states, and for the most part no one segment is targeted more frequently than another. Email authentication is one way to help prevent these phishing attacks, by providing a way to verify that an email comes from who it claims to be from. In practice, this refers to technical standards that make this verification possible. The most commonly used email authentication standards are SPF, DKIM, and DMARC. These standards were designed to supplement SMTP, the basic protocol used to send email, because SMTP does not itself include any authentication mechanisms. Sender Policy Framework, or SPF, is an open standard that specifies a method for preventing sender address forgery. It helps to control and even stop attempted sender forgeries. SPF allows senders to define which IP addresses are allowed to send mail for a particular domain. Recipients can then check that list of IP addresses to verify it's from one of those which are authorized. DKIM, or DomainKeys Identified Mail, is a TXT record published in your Domain Name System (DNS). It involves something that all IT admins should learn to love: keys—public keys to be specific. DKIM provides an encryption key and digital signature that verifies that an email message was not faked or altered. With DKIM, public and private key pairs are generated to keep mail servers and communications authenticated. Each outgoing Simple Mail Transfer Protocol (SMTP) server needs the right private key and prefix in order to match a public DNS record that the receiving mail server then verifies. Technically DKIM provides a method for validating a domain name identity that is associated with a message through cryptographic authentication,” according to dkim.org. In other words, DKIM uses keys to make sure an email sender is who they say they are. DMARC unifies the SPF and DKIM authentication mechanisms into a common framework and allows domain owners to declare how they would like email from that domain to be handled if it fails an authorization test. DMARC enables the message sender to indicate that their messages are protected with SPF and/or DKIM. A DMARC policy applies clear instructions for the message receiver to follow if an email does not pass SPF or DKIM authentication—for instance, reject or junk it. Guardian Digital goes beyond standard measures to protect our customers. We've implemented not just pre-defined rules and secure email policies, but also the latest email security protocols including SPF, DKIM, and DMARC to track the reputation of the sender. Sender-recipient relationship Intelligent language filters Domain reputation & age Email headers and envelope attributes Email content
Last updated October 2017 What is a cookie? A cookie is either a small text file that is stored on your hard drive, or some information that is stored in memory until you close your browser. Any given website can store and read only its own cookies; it cannot read a cookie set by another website, nor can it inject information into cookies set by other websites. What is its purpose? A cookie helps website operators monitor usage of their website, and it also enables them to provide a secure personalized browsing experience for their users. In addition, cookies are often used on eCommerce websites to facilitate the shopping experience. Guardian Digital uses or may use cookies in the following ways: To store session information while users are browsing its websites. To enable more accurate reporting of site usage data, such as new visitors, unique visitors and returning visitors. To enable targeted content to be served on its sites or other third party sites based on your browsing history (see privacy considerations below). What kind of cookies do we use? Strictly necessary cookies: we use strictly necessary cookies to facilitate the correct navigation of the website and portal as well as to ensure that content loads effectively. These cookies are essential to providing the services or any features you have requested. Performance cookies: we use cookies that track aggregate statistics related to our page views and the navigation of visitors to our online services. The information we collect enables us to improve the quality of your online experience, through assisting us in building user-friendly and trouble-shooting issues. Functionality cookies: we use functionality cookies to remember choices you make (such as language preference, country location, or other online settings) and provide the personalized or enhanced features that you select. Our functionality cookies can be used to provide online services to you, or to prevent online services from being offered to you if you previously indicated you did not want to receive such services. We do not use functionality cookies to identify you; however, we may use these cookies to track your browsing across our websites and online portal. Third-party cookies: We may use third party cookies for marketing and analytics purposes. These are cookies that are managed by a domain name different from Guardian Digital, including: Google Inc.: for the purpose of providing its Google Analytics service, which allows Guardian Digital to understand how users interact with the website. Siteimprove: for the purpose of collecting data that helps Guardian Digital understand how users interact within the website. MultiView, Inc.: for the purpose of providing targeted advertising on behalf of Guardian Digital as you browse other websites. 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Subsequently, other sites that you visit that include content from the same third-party site may be customized based on your previous browsing history. In this manner, it may appear as though these sites have read your cookies, but it is really because of the third-party cookie. Controlling cookies Guardian Digital recognizes its users' privacy concerns. You may choose to reject cookies either outright, or on a case-by-case basis. However, please be aware that our applications and websites may require you to accept cookies in order to use some or all of their features. If you wish to withdraw your consent to this Cookies Policy at any time, you should delete the cookies stored on your device via the settings and configurations on your internet browser. You can allow, block or delete installed cookies on your computer by configuring the options of the web browser installed on your computer. For more information, refer to the following links. 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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 LinuxSecurity.com, 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. LinuxSecurity.com — Guardian Digital sponsors the go-to online source of information, updates, and other news about Linux and open source.
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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent a lorem lectus. Etiam congue, odio sit amet finibus cursus, libero massa hendrerit urna, ac placerat mi eros quis turpis. Integer facilisis rutrum odio, et tincidunt lectus laoreet sit amet. Vestibulum vitae viverra tellus, fringilla convallis felis. Etiam accumsan mollis mauris ut venenatis. Morbi ullamcorper velit nec arcu luctus tempor. Suspendisse potenti. Praesent porttitor, lectus at porta mattis, metus libero tincidunt lorem, ac commodo erat est aliquam sapien. Donec et semper lorem. Donec tortor mauris, interdum a lacinia ut, feugiat pulvinar urna. Quisque nec placerat urna. Aliquam in urna vel neque posuere tincidunt. Sed in iaculis eros, non volutpat mi. Proin tempus bibendum tristique. Praesent elementum, ante sit amet semper lacinia, odio augue commodo felis, in ornare risus orci id nisi. Proin nec justo sit amet nibh commodo congue. Protection Comes First! Nulla turpis ex, laoreet vel congue vitae, vestibulum quis neque. Cras congue velit vitae venenatis mattis. Aliquam in turpis urna. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Sed consequat dolor eu gravida ultricies. Aenean ac tortor ut enim placerat luctus. Sed tincidunt, massa id blandit lobortis, tortor felis pretium nisi, at luctus nibh mi eu magna. Ut eget tellus nec dui molestie scelerisque id laoreet ipsum. Proin consectetur fermentum enim, ut malesuada odio malesuada tempor. Vivamus mi justo, vulputate sit amet purus eget, efficitur molestie tortor. Nulla facilisi. Nam vestibulum nisi sit amet enim hendrerit, ut malesuada neque tempor. Aenean rutrum congue nulla sed fermentum. Etiam sodales pellentesque tellus, vitae interdum sem eleifend pulvinar. Pellentesque consequat finibus sem, quis luctus elit fermentum vitae. Integer dui purus, consectetur eu tellus in, mollis maximus erat. Donec aliquam ipsum purus, vitae rutrum ante varius in. Cras porta, lacus luctus convallis faucibus, nisl nunc mattis leo, et elementum dolor quam non odio. Vivamus dignissim risus nec turpis accumsan ullamcorper. Interdum et malesuada fames ac ante ipsum primis in faucibus. Nunc sollicitudin congue turpis, a commodo nisl aliquam a. Etiam tristique eros vel bibendum pulvinar. Never compromise Phasellus sed risus at lacus ornare vestibulum sit amet vel dui. Ut lobortis eros libero, vel venenatis neque vestibulum sodales. Etiam aliquam velit lorem, nec feugiat mauris cursus ut. Morbi aliquet, enim et dignissim lobortis, tellus justo scelerisque ligula, ac vestibulum velit leo vitae turpis. Vivamus cursus ligula sit amet elit tempus vestibulum. Sed a porttitor elit. Etiam lacus neque, condimentum eget odio et, tincidunt facilisis justo. Nunc nec magna sed enim volutpat gravida faucibus quis enim. Aliquam ex arcu, scelerisque sit amet metus non, hendrerit condimentum leo. Nulla mattis magna sit amet lacus bibendum, ac aliquet sem congue. Morbi in orci elementum, commodo felis et, semper lectus. Vestibulum dolor urna, pulvinar ut mi sed, bibendum finibus magna. Fusce pharetra ante non felis maximus ullamcorper. Aliquam id risus dapibus, eleifend mauris a, euismod eros.
