List of the Top 25 Email Security Software for Mac in 2025

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.

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!

An innovative defense mechanism designed to combat phishing, ransomware, and the ever-changing landscape of email threats. Seamlessly integrating with your current infrastructure, our service strengthens your security measures, whether implemented in the cloud or on-site.

Guardz is an advanced cybersecurity solution driven by AI, designed to equip Managed Service Providers (MSPs) with the tools necessary to safeguard and insure small to medium-sized enterprises against cyber threats. This platform offers automated detection and response mechanisms that shield users, devices, cloud directories, and sensitive data from potential attacks. By streamlining cybersecurity management, it enables businesses to concentrate on their expansion without the burden of complicated security measures. Additionally, the pricing structure of Guardz is both scalable and economical, providing thorough protection for digital assets while promoting swift implementation and supporting business development. Moreover, its user-friendly interface ensures that even those without extensive technical knowledge can effectively manage their cybersecurity needs.

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.

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.

Secure email communication is a fundamental right for everyone, and Tutanota emerges as the leading choice, crafted with user-friendliness and privacy as its core principles. By creating a free account, you can take charge of your inbox once more. With state-of-the-art features such as end-to-end encryption and two-factor authentication, the level of email security is unmatched. Its integrated encryption guarantees that your mailbox remains exclusively yours, safeguarding your data from unauthorized access and interpretation. Being open source not only fosters transparency but also allows security experts to review the protective code, thereby bolstering confidence in its safety. Our Android app operates independently of Google services, establishing Tutanota as the top open source email solution. Available on both iOS and Android platforms, your secure communications are perpetually accessible. Our fast web client and extensive applications ensure a smooth process for sending encrypted emails. We are committed to your email privacy by offering an ad-free service, relentlessly striving to enhance encryption so you can focus on what is most important. With a clean and simplistic interface complemented by customizable features, Tutanota is resolutely focused on fulfilling your email needs effectively, ensuring a secure and user-centered experience. This commitment to privacy and usability sets Tutanota apart in the crowded email landscape.

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.

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.

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.

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.

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 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.

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.

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.

At EmailAuth.io, which is affiliated with Infosec Ventures, our primary focus is safeguarding your most precious digital asset: your email. We are committed to enhancing your email deliverability, ensuring you receive the highest return on investment from your email campaigns, and fostering trust with your customers, partners, and vendors alike. Our approach goes beyond mere support; we take charge of the entire process! EmailAuth employs a strategy that encompasses the full journey toward achieving the highest level of security for your domains. Our team of security specialists, along with dedicated customer success managers, collaborates seamlessly with you to ensure your needs are met effectively. Together, we work towards a secure and trustworthy email experience for all your communications.

Smartlockr is a data security platform that prioritizes the needs of people to facilitate secure email and file sharing across entire organizations. By focusing on human factors, Smartlockr provides an intuitive interface designed to help users minimize the risk of data breaches, acknowledging that human error is the leading cause of such incidents globally. The platform is compatible with all operating systems and devices, and it conveniently integrates with existing systems, including a plug-in for Microsoft 365 (Outlook) and an SMTP relay service. Additionally, Smartlockr allows users to securely send and receive large files, accommodating sizes of up to 5 TB. Moreover, it adheres to strict privacy regulations and security standards, such as GDPR, ISO, and NTA 7516, ensuring comprehensive compliance for organizations. This commitment to security and user-friendliness makes Smartlockr an essential tool for modern organizations aiming to protect their valuable data effectively.

Vade is a leading global provider of predictive email security, protecting 1 billion mailboxes in 76 countries. We enable Managed Service Providers (MSPs) and Small to Medium-sized Businesses (SMBs) to secure their Microsoft 365 users against complex email threats, including phishing, spear phishing, and malware. Numerous organizations, such as Internet Service Providers (ISPs), MSPs, and SMBs, choose Vade's cutting-edge email security solutions to safeguard their customers and operations from these significant cybersecurity risks. Our AI-powered tools are specifically designed to detect threats that traditional defenses frequently overlook. They successfully counteract evolving phishing attacks that bypass standard security measures, alongside targeted spear phishing and business email compromise tactics. Moreover, our technology excels at neutralizing sophisticated polymorphic and zero-day malware attacks, ensuring thorough protection for all users. By utilizing our solutions, businesses can confidently address the intricacies of email security while maintaining peace of mind. Our commitment to innovation ensures that we stay ahead of emerging threats in the ever-evolving cybersecurity landscape.

INKY is a renowned cloud-based solution for email security that has been recognized with multiple awards. It effectively safeguards organizations from phishing threats while also filtering out spam and malware. By leveraging advanced domain-specific machine learning and computer vision techniques, INKY is capable of detecting and neutralizing zero-day phishing attempts, ensuring they do not infiltrate traditional email systems. For emails deemed suspicious, the software displays warning banners to alert users. Its integration with Office 365 can be accomplished in just a few minutes, making it a swift addition to any organization. The system provides Safe, Unusual, and Malicious alerts, helping users discern the appropriate actions to take with their messages. Furthermore, INKY features a comprehensive dashboard that allows for complete oversight and monitoring of blocked threats. The email security solution enhances user protection by embedding clear warnings within emails, providing tailored advice to help users stay informed. These Safe, Unusual, and Malicious alerts come complete with detailed information, prompting users to scrutinize their emails further or to exercise caution. Clients particularly appreciate the ease of reporting suspicious emails with a single click, reinforcing the software’s user-friendly design and effective security measures. Overall, INKY not only protects businesses but also empowers users with knowledge and tools to navigate their inboxes safely.

Email Shield is a cloud-based security enhancement designed to safeguard email accounts across various sectors, such as banking, fintech, and eCommerce. By verifying and monitoring trusted contacts, it empowers users to identify potentially harmful emails while securing financial transactions. This tool enables accounts payable agents (AP) to review emails, recipients, and attachments, granting them the ability to approve, escalate, reject, or accept payments and request modifications to account details. Additionally, the system alters personal information within active messages, including the subject line, content, and sender details. Consequently, this functionality serves as a robust defense against wire fraud, vendor fraud, and other financial scams, enhancing overall security measures for businesses.

SpamTitan Plus Anti Phishing is an AI-powered email security system designed to offer protection against "zero day" threats and enhance intelligence capabilities. This solution boasts comprehensive coverage of all existing anti-phishing feeds, delivering 1.5 times the number of unique URL detections compared to top competitors and achieving phishing detection speeds that are 1.6 times faster. Additionally, SpamTitan Plus offers ongoing updates that introduce an impressive 10 million new, previously unseen malicious URLs daily. For those interested in experiencing this advanced security solution, booking a SpamTitan Plus demo today is highly recommended. Take advantage of the opportunity to see how SpamTitan Plus can safeguard your email communications effectively.