List of the Top 13 Secure Email Gateway Software for Windows in 2025

Boost your efficiency with a professional-grade email and calendar solution designed for businesses. Exchange allows for seamless collaboration on crucial documents while providing an organized inbox that prioritizes important messages and adapts to your personal work style, enabling you to handle tasks with greater effectiveness. Enjoy a tailored inbox equipped with valuable features, alongside a more organized approach to managing and responding to emails. The enhanced search capabilities yield faster and more thorough results, and the integration of Add-ins presents robust customization options that connect you to modern services and internal business tools. Moreover, improve your scheduling experience with an advanced calendar system that goes beyond basic appointment management by automatically extracting information from emails, such as flight confirmations and hotel reservations, while also suggesting venues based on your geographical position. Microsoft Exchange Online serves as a reliable and secure hosted email solution for businesses, prioritizing the safeguarding of your data with sophisticated security protocols. When these powerful tools are combined, they create a streamlined workflow that not only enhances productivity but also inspires your team to think more creatively and collaborate more effectively. This innovative approach to communication and scheduling can significantly transform how your organization operates.

MDaemon Technologies has created the email threat detection technology utilized by Security Gateway. For over two decades, this trailblazer in the email industry has been safeguarding email servers from various dangers like viruses, spam, and phishing. Organizations rely on their expertise to maintain the security of their email exchanges. Their protection extends to all email platforms, such as Microsoft Exchange and Office 365, among others. With a dedicated team of email security experts, Security Gateway simplifies the management of your organization’s email security needs. Utilizing the latest advancements in email threat detection technology and policy enforcement tools, Security Gateway ensures that legitimate emails are efficiently delivered to and from your users. Additionally, the cloud service offered by Security Gateway is straightforward to implement, allowing you to concentrate on other vital responsibilities. To learn more about the functionalities of Security Gateway, be sure to check out this informative video.

OMNITRACKER offers the ability to modify processes so they align perfectly with your organizational requirements. Its distinctive module and application architecture, coupled with numerous ready-to-use solutions, simplify the implementation process. Users can effortlessly adjust functionalities to suit their preferences or design their own workflows. The multi-client architecture of OMNITRACKER provides limitless scalability options. With its straightforward maintenance, regular updates, and appealing licensing structure, it ensures a rapid return on investment. Our solution for IT Service Management (ITSM) is not only scalable and efficient but also aligns with the latest ITIL standards while integrating seamlessly with other supportive processes. It assists in every phase of a project, enhancing both planning and management capabilities. Additionally, it can be integrated with other applications for enhanced functionality. Furthermore, the application allows users to monitor all aspects of sales projects, guiding them from initial lead generation to the successful conclusion of each project. This comprehensive approach ensures that all project stages are effectively managed and tracked.

Fortinet emerges as a key global player in the cybersecurity sector, notable for its comprehensive and integrated approach to safeguarding digital infrastructures, devices, and applications. Founded in 2000, the organization provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. A cornerstone of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly combines various security tools to enhance visibility, automation, and provide real-time threat intelligence across the entire network. Renowned for its dependability among businesses, government agencies, and service providers worldwide, Fortinet prioritizes innovation, scalability, and performance, thereby reinforcing its defenses against the constantly shifting landscape of cyber threats. In addition to its protective capabilities, Fortinet’s dedication to enabling digital transformation and ensuring business continuity highlights its essential role within the cybersecurity landscape, positioning itself as a trusted partner for organizations striving to navigate modern security challenges effectively. With a focus on proactive measures and cutting-edge solutions, Fortinet continues to adapt and evolve to meet the demands of an increasingly complex digital world.

Explore a secure and intuitive platform tailored for the safe transfer, retrieval, and signing of sensitive documents, allowing for file sizes of up to 2.5G per email while safeguarding confidential information within and beyond your organization. Our innovative technology enables users to bolster the security of their email communications by implementing various control mechanisms, such as limiting the number of times a document can be accessed, establishing expiration dates, and utilizing SMS codes and passwords to ensure smooth delivery to recipients. In today's increasingly precarious digital environment, choosing a groundbreaking and reliable solution is vital for effective digital security. Whether you need to send or receive emails with large confidential attachments or require documents to be signed, our platform is fully equipped to facilitate the safe exchange of sensitive information, including passwords, credit card numbers, financial records, tax documents, incident reports, and any other confidential data intended for email sharing. With our advanced technology, you can confidently address the security needs and requirements of your organization, ensuring that your sensitive information remains protected throughout the entire process. Embrace the future of secure communication and enhance your organization's data protection strategies today.

Having the capability to modify and remove messages, along with the option for automatic deletion, clearing chat histories, and fully erasing all records is crucial. Users are empowered to disconnect devices remotely, employ a deceptive secret phrase, and activate features such as auto-lock and auto-logout during periods of inactivity. There are functionalities to conceal contacts and establish blacklists, as well as customized visibility options for individual contacts, enabling precise configuration of contact permissions. Furthermore, tasks can be delegated to both oneself and team members, with mechanisms in place to monitor progress and ensure accountability. Users also have the ability to securely store and manage their passwords, sharing them with selected contacts as needed. Enhancing collaboration is further supported by setting team objectives and tracking the resolution of various challenges, which cultivates a more effective work atmosphere. Overall, this extensive suite of features greatly enhances both communication and organizational capabilities within any group setting, leading to improved teamwork and efficiency.

RMail®, an e-security solution offered by RPost®, emerged as a prominent global leader in the year 2000. Specializing in user-friendly email encryption, RMail provides services that ensure privacy, compliance, legal delivery proof, secure file sharing, email rights management, protection against email impostors, and overall email encryption. The transmission security services provided by RMail are particularly beneficial for professionals and organizations tasked with sending sensitive or consumer-regulated data. These offerings extend beyond the capabilities of standard email and encompass: (a) a simplified and more automated email encryption process for enhanced privacy compliance; (b) a reliable proof record detailing the sender, recipient, and content of each email; (c) confidence regarding the delivery and open status of critical emails that are time-sensitive; (d) a timestamped confirmation of content delivery; and (e) the ability to securely share large files, making RMail an indispensable tool for modern communication needs.

The Secure Email Gateway provides a powerful solution for businesses by utilizing a sophisticated array of spam filters, antivirus mechanisms, and content analysis tools to prevent unwanted emails from breaching the company’s network. Since the security needs may differ across various departments, it allows for the implementation of customized security protocols that cater specifically to the roles of employees in areas such as finance or sales. Dome Anti-spam facilitates the creation of multiple profiles, each designed with unique security features and restrictions to meet diverse organizational needs. Moreover, its containment capabilities offer protection against new threats such as ransomware and zero-day vulnerabilities. The Valkyrie file verdict system evaluates unknown files, enabling users to safely open attachments with confidence that they are protected from potential harm. Comodo's advanced containment technology ensures that all suspected threats are quarantined before they can impact endpoints, thereby eliminating the risk of malware infections from any source. This all-encompassing strategy not only bolsters security measures but also empowers employees to execute their responsibilities without apprehension regarding digital dangers, fostering a more productive work environment. The continuous evolution of these technologies will further enhance organizational resilience against future cyber threats.

RevBits Email Security is an advanced solution designed to fill significant voids in the email security landscape. Utilizing innovative algorithms, including a cutting-edge page impersonation detection technique, it ensures an unparalleled level of email scrutiny. Each email is assigned a composite probabilistic score, providing valuable insights and fostering ongoing user education. Furthermore, this robust security tool enhances the overall email security framework by identifying and thwarting sophisticated malicious emails that may bypass existing protections. Ultimately, RevBits Email Security safeguards employee endpoints, which represent the final line of defense in email interactions. This proactive approach not only defends against threats but also empowers users with essential knowledge for better security practices.

A quarter of the leading 100 German firms with the highest revenues opt for Zertificon's solutions. Our Z1 SecureMail Gateway simplifies Enterprise Email Encryption, ensuring secure communication with anyone, anytime. The entire organization can seamlessly encrypt, decrypt, manage, and verify email signatures in the background. Maintenance for the Z1 SecureMail Gateway is minimal, and the user-friendly, browser-based admin interface requires no specialized skills to operate. Automatic key management and centralized enforcement of security policies further enhance its efficiency. Quick and easy integration into either cloud or on-premises email systems means that your business operations remain uninterrupted. There is no need for employee training, and the experience for recipients is smooth and hassle-free. The Z1 SecureMail Gateway allows for centralized customization of encryption, minimizing the risk of human error. With this solution, you can swiftly achieve compliance and ensure the highest security standards. Additionally, you retain ownership of your encryption keys and benefit from German-engineered data sovereignty, free from backdoors, which enhances your organization’s trustworthiness and security posture. This comprehensive approach not only safeguards communications but also empowers your organization to focus on its core activities without security concerns.

Introducing the ultimate file security solution that ensures the complete protection of files entering your organization. Unlike conventional detection-based systems that only spot and block potentially harmful content, Positive Selection is dedicated to pinpointing the safe elements within every file, guaranteeing that all files delivered to your enterprise are fully secure. This comprehensive approach is applicable to any file, at any time, and from any source. Votiro’s Secure File Gateway possesses in-depth knowledge of various file types, allowing it to effectively neutralize threats across a vast range of files, regardless of their entry point into your organization. By adopting this state-of-the-art solution, businesses can confidently operate, secure in the knowledge that their data is safeguarded against potential risks. This innovation not only enhances security but also fosters a more efficient workflow within the organization.

Protect your email infrastructure and users, whether they are hosted on-premises or in the cloud, by implementing Trellix Email Security. This solution is designed to identify and combat sophisticated email threats such as ransomware, business email compromise (BEC), and phishing attacks. With its exceptional detection and response features, you can create a reliable and resilient email system. The platform swiftly pinpoints ongoing threats and provides prioritized alerts, allowing security analysts to take immediate action. Maintain the safety of your email—whether cloud-based or on-premises—by utilizing cutting-edge sandbox technology, artificial intelligence, and machine learning. Furthermore, enhance your security environment by integrating with over 650 Trellix solutions and various third-party products, which can offer essential insights and support a unified security framework. By employing this on-premises solution, you can significantly diminish the chances of breaches while effectively identifying, isolating, and defending against intricate URL and attachment threats. Choose Advanced Threat mode for detecting harmful URLs through custom plug-ins, or opt for Full Hygiene mode to reduce impersonation attempts, BEC, and other vulnerabilities. These comprehensive features empower you to uphold a secure email landscape that is customized to meet the specific requirements of your organization, ensuring that your communications remain safeguarded against evolving threats.

The Clearswift Secure Email Gateway (SEG) provides strong protection for an organization's email communications, effectively shielding against incoming cyber threats and stopping unauthorized data breaches. As email serves as the main communication method for numerous companies, it has regrettably become an attractive target for cybercriminals aiming to steal sensitive data. This Secure Email Gateway is purposefully developed to combat both known and new malware, as well as intricate threats like phishing scams. It is essential for IT departments to ensure that all email interactions, be they internal or external, are not only safe but also compliant with regulatory requirements. Thanks to Clearswift's outstanding inspection features and comprehensive policy management, emails are secured in real time, which guarantees that communications remain safe and uninterrupted, thus minimizing the risk of operational disruptions. By implementing this all-encompassing strategy, organizations can concentrate on their primary operations while having full faith in their email security protocols. Ultimately, this allows them to enhance their productivity and maintain a strong defense against ever-evolving cyber threats.