List of the Top 25 Email Security Software for Mac in 2026

Guardz is the unified cybersecurity platform built for MSPs. We consolidate the essential security controls, including identities, endpoints, email, awareness, and more, into one AI-native framework designed for operational efficiency. With an identity-centric approach, an elite threat hunting team, and 24/7 AI + human-led MDR, Guardz transforms cybersecurity from reactive defense into proactive protection.

Bitdefender Small Business Security delivers powerful, enterprise-grade cybersecurity specifically designed for smaller enterprises, ensuring comprehensive protection across multiple platforms such as Windows, macOS, iOS, and Android. Its intuitive centralized management system empowers organizations without specialized IT staff to effectively implement and manage their security protocols from a single dashboard. The solution employs a multi-faceted strategy for endpoint protection, utilizing machine learning, behavioral analytics, real-time surveillance, process termination, and rollback features to defend against both established and emerging threats. Furthermore, it includes mechanisms for ransomware deterrence and recovery, which identify suspicious encryption activities and enable restoration of files from backups. Users also benefit from defenses against fileless attacks, incorporating techniques like memory injection blocking and script prevention. In addition, the software bolsters security by shielding users from phishing attempts and fraud through the blocking of harmful websites and timely notifications, while providing sophisticated exploit protection with real-time defenses for commonly used applications, including browsers, Office software, and Adobe Reader. This extensive array of functionalities makes Bitdefender Small Business Security an exceptional option for small enterprises aiming to enhance their cybersecurity measures significantly. Ultimately, its user-friendly design combined with robust protective features enables small businesses to maintain a fortified digital environment.

ESET Protect Advanced delivers a robust cybersecurity solution tailored for organizations of various sizes. This platform provides cutting-edge endpoint security to combat ransomware and zero-day vulnerabilities effectively. It features full disk encryption to uphold legal standards and safeguard data integrity. The solution employs adaptive scanning, cloud sandboxing, and behavioral analysis to defend against emerging cloud-based threats proactively. Additionally, mobile threat protection encompasses anti-malware and anti-theft measures for both Android and iOS devices. Beyond this, it includes cloud application security, mail server protection, vulnerability assessment, patch management, and comprehensive cloud app safeguards. Enhancements such as multi-factor authentication and extended detection and response (XDR) bolster threat detection and response capabilities. The system offers a unified remote management interface that allows for seamless visibility into threats and user activities. Furthermore, it provides in-depth reporting and tailored notifications to keep users informed of potential risks and system status. This holistic approach ensures that businesses can maintain a strong security posture in an increasingly complex digital landscape.

SpamTitan's email security solution safeguards businesses, educational institutions, small to medium-sized enterprises (SMBs), and managed service providers (MSPs) from various email threats including spam. It effectively defends against phishing attempts, zero-day vulnerabilities, viruses, malware, ransomware, and other malicious email activities, ensuring a secure mail flow and filtering out unwanted messages. Our user-friendly yet robust email protection is compatible with Office365, making it accessible for a wide range of users. You can try SpamTitan Email Security risk-free with a fully supported trial. SpamTitan – Comprehensive features included: * Protection against CEO impersonation * Safeguarding against spear phishing attacks * Analysis of links within emails * Complete email sanitization * Defense against zero-day attacks * Mail spooling capabilities * Anti-spoofing measures * Protection against ransomware and malware * Checking for SPF, DKIM, and DMARC compliance * Encryption options available * Fully multi-tenant architecture * Customizable user interface for branding * Complete REST API access * Detailed setup documentation and support Recognized as a top solution in the G2 Crowd Email Security category, SpamTitan Email Security stands out for its premium functionalities and reliability. Begin your free trial today and enhance your email security!

Mailfence is a provider of encrypted email services that employs OpenPGP-based encryption along with digital signatures for enhanced security. It boasts an array of features that facilitate collaboration while ensuring both security and convenience are maintained. Users can securely store and edit documents through Mailfence Document, and sharing these documents with teammates is as simple as a single button press. Additionally, the Mailfence Calendar helps users manage tasks, meetings, events, and other vital information efficiently. The Contacts feature allows for the storage of contact information and the creation of mailing lists, which enhances overall productivity. Designed with full interoperability in mind, Mailfence can be synced seamlessly with various services. Furthermore, it offers fully customizable whitelabel versions of its interface, catering to diverse branding needs. In a commitment to online privacy, Mailfence contributes 15% of its PRO subscription revenue to organizations like IFF or EDRI. This dedication to supporting privacy advocacy is a testament to Mailfence's values.

KDMARC serves as a robust email authentication and anti-spoofing tool that assists organizations in safeguarding their outgoing email communications. With its Dynamic SPF feature, users can effortlessly manage domain and IP whitelists and blacklists directly from the KDMARC dashboard with just one click. Additionally, the Dynamic DMARC capability enables organizations to adjust their policies—None, Quarantine, or Reject—instantly to respond to security needs. This innovative solution is crafted to empower users to implement necessary security measures swiftly, thereby enhancing overall email safety. By preventing brand exploitation, boosting email delivery rates, and mitigating risks associated with malware and ransomware, KDMARC fosters greater trust in email communications and ultimately drives higher engagement levels. As a result, organizations can strengthen their reputations and ensure a secure exchange of information.

Heimdal® Endpoint Detection and Response is our exclusive multi-faceted service that offers exceptional capabilities for prevention, threat hunting, and remediation. This service integrates the most cutting-edge threat-hunting technologies available, including Heimdal Next-Gen Antivirus, Heimdal Privileged Access Management, Heimdal Application Control, Heimdal Ransomware Encryption Protection, Heimdal Patch & Asset Management, and Heimdal Threat Prevention. With six modules functioning together harmoniously under a single platform and agent, Heimdal Endpoint Detection and Response provides comprehensive cybersecurity layers necessary for safeguarding your organization against both familiar and unfamiliar online and internal threats. Our advanced product enables rapid and precise responses to complex malware, ensuring that your digital assets are protected while also maintaining your organization's reputation. By consolidating these capabilities, we deliver an efficient solution that addresses the evolving challenges of cybersecurity effectively.

Trustifi delivers top-tier email security services designed to assist businesses of all sizes in effectively managing threat detection, ensuring compliance with regulations, and implementing data encryption. Its solutions can be easily integrated with popular email platforms such as Outlook and Gmail, as well as any other email server through a relay system. Among the features offered are Advanced Threat Protection, which includes malware and ransomware detection along with Business Email Compromise (BEC) attack prevention alerts, as well as Data Loss Prevention that adheres to strict compliance standards like HIPAA/HITECH, PII, GDPR, FSA, LGPD, and CCPA. Furthermore, Trustifi provides NSA-grade encryption to safeguard sensitive information, and only select Enterprise clients are granted access to customized branding and product white-labeling options. Additionally, personalized training sessions are available for teams to enhance their understanding of the system. Given the diverse encryption needs of organizations, Trustifi recognizes that there is no universal solution for email security, and thus frequently offers tailored solutions upon request, often at no additional cost. This commitment to customization ensures that each client's unique security requirements are effectively addressed.

Tuta is an encrypted email platform that prioritizes your privacy, offering secure communication with post-quantum cryptography. The service includes features such as encrypted calendars and contacts, ensuring that all your personal and professional data is protected. Tuta supports mobile apps for iOS and Android, and provides an ad-free, user-friendly experience with customizable options for custom domains. The company focuses on environmental sustainability, using green energy to power all its services while maintaining a zero-knowledge, open-source architecture.

Discover reliable, enterprise-grade email, calendar, and collaboration solutions that fit your budget. Kerio Connect presents a wide array of features for communication and teamwork, eliminating the complexities and high expenses typically linked to other services. It offers an integrated experience that combines email with shared calendars, scheduling tools, contact management, tasks, notes, shared and public folders, along with instant messaging capabilities. Users can easily sync their emails to their favorite mobile devices via Microsoft ActiveSync. The Instant Messaging functionality supports XMPP, making it compatible with various third-party chat and IM applications across both desktop and mobile platforms. Setting up Kerio Connect is a breeze, taking only 10 minutes, after which users can begin working almost immediately. This solution can be implemented on-site or through cloud environments hosted by partners, catering to users on Mac, Windows, or Linux systems. Additionally, it ensures full support for Outlook on both Windows and Mac, along with compatibility for numerous other IMAP or POP-compliant email clients, providing flexibility and smooth integration for every user. Embrace a collaborative experience that is straightforward and efficient, allowing your team to focus on what truly matters.

Zivver serves as an advanced digital communications platform designed to facilitate the future of secure online interactions. Its user-friendly, intelligent, and secure features make it a preferred choice for over 5,000 organizations across the globe. By effectively mitigating the risk of data breaches caused by human mistakes, Zivver ensures adherence to regulatory standards. The platform integrates effortlessly with all leading email services, such as Outlook, Gmail, and Microsoft 365. It boasts exceptional zero-keys encryption along with innovative functionalities, including context-driven machine learning to create business rules automatically. With Zivver, users can safely send large files of up to 5TB using their regular email applications. Moreover, Zivver adheres to all essential data security protocols, including ISO 27001, NTA 7516, GDPR, and HIPAA, further cementing its reputation as a trustworthy solution in the realm of secure digital communication. This commitment to security and compliance makes Zivver an invaluable asset for organizations looking to enhance their digital communication strategies.

Effortlessly oversee email signatures for every user across all their devices. Designed specifically for Microsoft 365 and Google Workspace, this platform boasts decades of expertise in managing email signatures effectively. Ensure that all employees have consistent, professionally branded, and current signatures, regardless of their device, department, or location. You can also design targeted email signature marketing banners that appear beneath contact information to communicate updates, highlight achievements, showcase values, promote content, and much more, all featuring clickable calls-to-action to enhance engagement and drive traffic. With a role-based login system, the marketing or communications department can manage everything seamlessly. Once the initial setup is completed in just 45 minutes, IT teams are free from any ongoing responsibilities. The platform is securely hosted in ISO 27001-certified data centers, specifically on Microsoft Azure, guaranteeing optimal security for data storage in compliance with all laws and regulations, including GDPR. This robust framework not only safeguards sensitive information but also enhances user confidence in the management of their email communications.

Guardian Digital offers robust protection against various email threats, including phishing scams, zero-day vulnerabilities, and debilitating ransomware assaults. These dangers represent just a fraction of the numerous risks that email users encounter daily. Given that over 90% of cyber attacks begin with an email, securing email is fundamentally a matter of business security. An effective, purpose-driven solution is essential for safeguarding email communications. It effectively addresses significant security vulnerabilities found in platforms like Microsoft 365 and Google Workspace. In addition, it offers remote assistance, expert installation, and continuous management from a distance. Furthermore, we deliver real-time insights into cybersecurity for businesses, enabling you to evaluate your existing risk profile and bolster your defenses against the pervasive threats that all organizations face through email interactions. Ultimately, our comprehensive approach ensures that your email security is not only reactive but also proactive in minimizing potential threats.

The Accellion secure communication platform effectively mitigates data breaches that stem from external cyber threats. Chief Information Officers and Chief Information Security Officers depend on Accellion to maintain comprehensive oversight, adherence to regulations, and authority over the transfer of intellectual property, personal identifiable information, and protected health information across various third-party communication methods. This encompasses channels such as email, file sharing, mobile applications, enterprise portals, SFTP, and automated inter-business processes, allowing users to confidently select the Accellion button as the most reliable method for sharing sensitive data beyond their organization. Additionally, the Accellion platform provides a range of deployment options, including FedRAMP, hybrid, and on-premise solutions, ensuring that organizations can choose the configuration that best meets their needs. By delivering the necessary security and governance frameworks that CISOs demand, Accellion helps organizations mitigate risks while complying with stringent regulations like NIST 800-171, HIPAA, SOX, GDPR, and GLBA. With a strong track record, more than 25 million users across over 3,000 organizations have benefitted from the protective capabilities of Accellion’s solutions, highlighting the platform's extensive reach and effectiveness in safeguarding sensitive information.

Established in 2012 by a key contributor to the DMARC specification, dmarcian is committed to enhancing global email security by making DMARC readily available through exceptional tools, educational materials, and expert assistance. Employed by thousands and endorsed by support teams worldwide, our DMARC Management Platform provides critical insights and oversight regarding the usage of your email domains. This platform equips organizations of all sizes with actionable information and alerts that facilitate the implementation of DMARC and its complementary technologies, SPF and DKIM, as well as the capability to visualize email delivery metrics and maintain a secure domain infrastructure. Addressing email security weaknesses, bolstering domain and brand reputation, and fulfilling the increasing requirements for DMARC compliance are all achievable with our top-tier services. By harnessing our offerings, businesses can navigate the complexities of email security with confidence and reliability.

Xeams is a robust and secure all-in-one email server compatible with various operating systems, including Windows, Linux, Solaris, MacOSX, and other UNIX variants. The server supports essential protocols such as SMTP, POP3, and IMAP, ensuring comprehensive email functionality. One of its standout features is a highly effective spam filtering system that can remove as much as 99 percent of unwanted emails right from the start. Additionally, its user-centric design allows for a customizable email experience, making it accessible for users of all levels. With its impressive capabilities, Xeams stands out as an excellent choice for managing email communications efficiently.

Safeguard your business effortlessly with a one-click solution that delivers comprehensive protection across the board. This integrated approach to threat defense ensures a well-rounded, state-of-the-art safeguard that won’t overburden your IT team. By leveraging advanced AI, our system not only predicts potential risks but also swiftly detects and resolves problems, allowing you to focus on what truly matters—your business's growth and success.

ESET PROTECT Complete is a comprehensive cybersecurity solution designed to safeguard business endpoints, cloud services, and email systems. It implements advanced techniques to protect against ransomware and zero-day threats, leveraging cloud sandboxing alongside machine learning for enhanced detection capabilities. In addition, it provides full disk encryption to ensure compliance with data protection regulations. The protection extends to mobile devices, file servers, and email servers, incorporating features such as anti-malware, anti-phishing, and anti-spam measures. Organizations can utilize a centralized cloud-based management console for efficient deployment, monitoring, and response to security incidents. Moreover, it comes equipped with vital vulnerability and patch management tools that promptly identify and address software vulnerabilities. This all-encompassing strategy not only strengthens the organization's cybersecurity defenses but also streamlines the management of security measures and responses, making it easier for teams to maintain a proactive security stance. Ultimately, the integration of these diverse features results in a robust platform that not only protects but also enhances operational efficiency.

ESET PROTECT Elite is an advanced cybersecurity solution tailored for enterprises, effectively merging extensive detection and response features with a solid multilayered defense architecture. By employing innovative methods such as adaptive scanning, machine learning, cloud sandboxing, and behavioral analysis, it proficiently tackles zero-day vulnerabilities and ransomware threats. This platform offers contemporary endpoint protection for both desktop and mobile devices, alongside server security that guarantees real-time safety of data and mobile threat defenses. Furthermore, it includes full disk encryption, assisting organizations in achieving compliance with data protection regulations. ESET PROTECT Elite also features robust email security capabilities, which provide protection against phishing, malware, and spam, while safeguarding cloud applications such as Microsoft 365 and Google Workspace. With its automated vulnerability management and patching abilities, the solution streamlines the detection and rectification of security weaknesses across all endpoints, encouraging a proactive stance towards cybersecurity. In conclusion, ESET PROTECT Elite stands out as a holistic solution that effectively meets the complex and ever-changing demands posed by contemporary cybersecurity threats, ensuring that organizations remain secure in a digital landscape fraught with risks.

Gblock is a powerful Chrome extension that shields your Gmail account from privacy-invasive trackers, providing a comprehensive solution for email protection. It effectively blocks spy pixels—tiny, invisible images embedded in emails that track your actions, such as when you open an email and where you are. Additionally, Gblock protects you from tracking links, which are used to collect personal information by appending custom parameters to URLs. With its built-in proxy, Gblock anonymizes your email activity, preventing third-party surveillance. The extension features automated tracker detection, ensuring that new tracking methods are blocked as soon as they are identified, keeping your email experience secure. By using Gblock, you can confidently use Gmail without worrying about hidden trackers or privacy breaches. Its simple integration with Chrome makes it easy to maintain privacy and security across your inbox.

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.

WikiLocks operates similarly to your functionality, integrating seamlessly with your frequently used applications. You begin by choosing the data you want to secure, then designate access permissions for specific individuals and groups. Once this setup is complete, you can share the newly secured document. Remarkably, no matter how the document is accessed, whether it's copied or pasted, its protection remains intact throughout its entire lifecycle, ensuring consistent security measures are upheld. This level of protection provides peace of mind when sharing sensitive information.

Cynet provides Managed Service Providers (MSPs) and Managed Security Service Providers (MSSPs) with a comprehensive, fully managed cybersecurity platform that integrates vital security features into a single, easily navigable solution. This consolidation not only streamlines the management of cybersecurity but also minimizes complexity and reduces expenses, thereby eliminating the necessity for engaging multiple vendors and managing various integrations. With its multi-layered approach to breach protection, Cynet ensures strong security across endpoints, networks, and SaaS/Cloud environments, effectively safeguarding against the constantly evolving landscape of cyber threats. The platform's sophisticated automation capabilities significantly improve incident response, allowing for rapid detection, prevention, and resolution of potential security issues. Additionally, Cynet’s dedicated CyOps team, backed by a 24/7 Security Operations Center (SOC), continually monitors client environments and provides expert advice to maintain optimal security. Collaborating with Cynet enables you to offer state-of-the-art, proactive cybersecurity services while enhancing your operational efficiency. Discover how Cynet can transform your security services and empower your clients to navigate the complexities of the digital landscape with confidence and resilience. By choosing Cynet, you position your organization at the forefront of cybersecurity innovation, ensuring that you remain competitive in a rapidly evolving market.

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.

SecurityHQ operates as a worldwide Managed Security Service Provider (MSSP), offering continuous threat detection and response around the clock. With access to a dedicated team of analysts available every hour of every day throughout the year, clients benefit from personalized guidance and comprehensive insights that provide reassurance, all through our Global Security Operation Centres. Leverage our recognized security solutions, expertise, personnel, and systematic approaches to enhance business operations while minimizing risks and lowering overall security expenditures. Additionally, this commitment to excellence ensures that your security needs are met proactively and effectively.