Best Email Security Software for Mac of 2025

Cynet equips MSPs and MSSPs with a fully managed, all-in-one cybersecurity platform that brings together essential security functions in a single, user-friendly solution. By consolidating these capabilities, Cynet simplifies cybersecurity management, reduces complexity, and lowers costs, eliminating the need for multiple vendors and integrations. With multi-layered breach protection, Cynet delivers robust security for endpoints, networks, and SaaS/Cloud environments, ensuring comprehensive defense against evolving threats. Its advanced automation enhances incident response, enabling swift detection, prevention, and resolution. Supported by a 24/7 Security Operations Center (SOC), Cynet’s CyOps team provides continuous monitoring and expert guidance to keep client environments secure. Partnering with Cynet allows you to deliver cutting-edge, proactive cybersecurity services while improving operational efficiency. See how Cynet can redefine your security offerings and empower your clients today.

SpamTitan email security protects businesses, schools, smbs and MSPs from spam. SpamTitan email security protects against spam, phishing, day-zero attacks and viruses, malware, ransomware and other threats to email. It helps to control mail flow, clean it, protect against spam, and protect against unwanted email. We offer easy-to-use, yet powerful email security for businesses, smbs, and MSPs that is Office365-friendly. SpamTitan Email Security is available for a free, fully supported trial. SpamTitan – Premium functionality included * CEO Impersonation protection * Spearphishing Protection/ Phishing * Link analysis * Full Sanding * Zero Day Attacks protection * Mail Spooling * Spoofing protection * Ransomware and Malware Protection * SPF/DKIM/DMARC checking * Encryption * Fully multi-tenant environment * Ability to rebrand entire UI * Full REST API * Set up documents and support SpamTitan Email Security is the best solution in the G2 Crowd Email Security. Start your free trial today!

Our state-of-the-art protection system offers robust defense against phishing, ransomware, and the ever-changing landscape of email threats. Seamlessly integrating with your current infrastructure, our solution fortifies your security measures, whether implemented in the cloud or on-site.

ESET Protect Advanced offers a comprehensive cybersecurity solution for businesses of any size. It offers advanced endpoint security against ransomware and zero-day threats. It also includes full disk encryption to ensure legal compliance and data security. The solution uses adaptive scanning, cloud sandboxing and behavioral analysis for proactive cloud-based threats defense. Mobile threat protection secures Android and iOS with anti-malware and anti-theft. It also offers cloud app security, mail server protection, vulnerability and patch management, and cloud app protection. Multi-factor authentication and extended detection and reaction (XDR) improve threat detection and response. The solution provides a single pane of glass remote management to provide visibility into threats and users. It also offers advanced reporting and customized notifications.

Guardz is an AI-powered cybersecurity solution that provides MSPs with a platform to protect and insure small and growing businesses from cyberattacks. The platform provides automatic detection and response to protect users, devices, cloud directories, and data. We simplify cybersecurity management to allow businesses to focus on their growth without being bogged down by security complexity. The Guardz pricing model is scalable and cost effective and ensures comprehensive digital asset protection. It also facilitates rapid deployment and business growth.

Mailfence is an encrypted email provider that uses OpenPGP-based encryption and digital signatures. Mailfence offers a variety of features that allow for collaboration without compromising security or convenience. Mailfence documents allows you to securely store and edit documents. You can also share documents with your team by pressing a button. Mailfence calendar will help you keep track of all your tasks, meetings, events, and other important information. Mailfence contacts will save your contacts and allow you to create mailing lists to maximize efficiency. Mailfence was designed to be fully interoperable. This means that you can sync Mailfence with any service. Mailfence offers fully customizable whitelabel versions for its Mailfence interface. Mailfence donates 15% from PRO subscriptions to IFF or EDRI to support the fight for Online privacy.

KDMARC is an anti-spoofing and email authentication solution that aids organizations in protecting their outbound mail flow. KDMARC's Dynamic SPF feature allows you to whitelist and blacklist domains and IPs with a single click from the KDMARC dashboard. Dynamic DMARC allows you to change your policy (None, Quarantine & Reject) in real-time. This tool is designed to help customers take the appropriate security actions quickly to ensure stronger email security. KDMARC helps organizations trust their mailboxes by preventing brand abuse, increasing email delivery, and preventing malware & ransomware attacks. This allows them to increase email engagement.

Trustifi provides industry-leading email security solutions that help small, medium, and large enterprises manage threat detection, regulatory compliance and data encryption. Easily deployable on Outlook, Gmail, and any other email server via relay **Advanced Threat Protection** -Malware/ransomware virus detection and BEC attack prevention and alarms **Data Loss Prevention** --100% compliant HIPAA/HITECH and PII, GDPR. FSA, LGPD, CCPA and more **Encryption** -NSA-grade. Only select Enterprise customers have access the company branding and product white-labeling. One-on-one training for teams. There are many encryption requirements, so there is no one-size-fits all solution for email security. Many times, customized solutions are available on request and often free of charge.

Tuta provides a privacy-focused email service that guarantees end-to-end encryption, securing all your data from unauthorized access. Featuring quantum-safe cryptography, Tuta protects your communications with the highest standards of security. Its intuitive apps for Android, iOS, and desktop ensure an easy and efficient experience for users, with no ads and complete privacy. Tuta also supports custom domains for professional use and remains committed to sustainability by using 100% renewable energy for its operations.

Experience secure, enterprise-level email, calendar, and collaboration tools without breaking the bank. Kerio Connect offers a comprehensive suite of features and capabilities for messaging and collaboration without the intricacies and hefty costs associated with other platforms. It seamlessly integrates email with shared calendars, scheduling, contact management, tasks, notes, shared and public folders, and instant messaging. You can synchronize your messages directly to your preferred mobile devices using Microsoft ActiveSync. The Instant Messaging feature is compatible with XMPP, allowing use with various third-party chat and IM applications on both desktop and mobile devices. Installation of Kerio Connect takes just 10 minutes, with users able to start working within an additional 10 minutes. This solution can be deployed either on-premises or through partner-hosted cloud environments, accommodating users on Mac, Windows, or Linux systems. Furthermore, it provides comprehensive support for Outlook on both Windows and Mac, as well as numerous other IMAP or POP-compliant email clients, ensuring versatility and ease of integration for all users.

Zivver is the digital communications platform that powers the next generation of secure digital communication. It is simple, smart, and secure. Zivver is trusted by more than 5,000 organizations worldwide. It prevents data leaks from human error and ensures compliance. Zivver seamlessly integrates to all major email clients, including Outlook, Gmail, and Microsoft 365. It features unrivalled zero-keys encryption and smart features like contextual machine learning powered business rule generation. Zivver allows you to securely share large files upto 5TB via your existing email client. Zivver is fully in compliance with all major data security standards including ISO 27001 and NTA 7516, GDPR and HIPPA.

Centrally manage email signatures for all users on all their devices. The platform is built for Microsoft 365 and Google Workspace, and it has decades of experience with email signature management. Get consistent, branded and up-to-date signatures for all employees across devices, departments, and geography. Create customized and targeted email signature marketing banners below the contact details to share updates, achievements, values, promote content and much more! All with clickable call-to-actions to help you drive traffic and interest. With role-based login, the marketing or communications department can easily manage it. After the initial setup (45 min), IT has no workload. Safely hosted at ISO 27001-certified data centers (Microsoft Azure). This ensures the best, most secure data storage available – under all laws and regulations, including GDPR.

Guardian Digital protects against email threats such as phishing, zero day exploits, and crippling ransomware attacks. These are just some of the many threats email users face every single day. Email security is a business security issue, as more than 90% of cyber attacks originate in an email. A purpose-driven solution is the best way to protect email. It closes critical security gaps in Microsoft 365 and Google Workspace. It also provides remote support, expert setup and ongoing remote management. We provide real-time cybersecurity business insight to help you assess your current risk profile and protect you against the threats that all businesses face when using email.

The Accellion platform for secure content communication effectively safeguards against data breaches and compliance issues related to third-party cyber threats. Chief Information Officers and Chief Information Security Officers trust Accellion for comprehensive oversight, compliance, and control of sensitive information such as intellectual property, personally identifiable information, protected health information, and other critical data shared across various third-party communication channels, including email, file sharing, mobile applications, enterprise software, web portals, SFTP, and automated inter-business processes. Users can confidently click the Accellion button, assured that it represents a secure method for transmitting sensitive information externally. With deployment options that include on-premise, private cloud, hybrid, and FedRAMP solutions, the Accellion platform offers the necessary security measures and governance that CISOs require to safeguard their organizations, reduce risks, and comply with stringent regulations like NIST 800-171, HIPAA, SOX, GDPR, and FISMA among others. Accellion has successfully protected over 25 million users across more than 3,000 organizations, showcasing its effectiveness and widespread adoption in the industry. The platform's robust features continue to evolve, ensuring organizations remain ahead of emerging cyber threats.

Xeams, a secure and powerful complete email server for Windows, Linux Solaris, MacOSX, and other flavors UNIX, is available. Xeams supports SMTP and POP3, as well as IMAP. It has a powerful spam filtering engine which eliminates up to 99 percent of junk mail upon installation. It is very user-friendly because it offers a flexible approach to email.

Protect your entire business with a single-click solution that offers all-in-one protection. A unified solution for threat protection that provides a holistic, cutting-edge defense without draining your IT resources. Our AI anticipates risks, then proactively identifies issues and automatically addresses them, saving you time.

ESET PROTECT Complete serves as a holistic cybersecurity solution aimed at securing business endpoints, cloud services, and email infrastructures. It employs cutting-edge measures to defend against ransomware and zero-day vulnerabilities, utilizing cloud sandboxing technology alongside machine learning-enhanced detection methods. Additionally, it offers full disk encryption features that support adherence to data protection laws. The solution extends its robust protections to mobile devices, file servers, and email servers, integrating anti-malware, anti-phishing, and anti-spam functionalities. With its centralized management console hosted in the cloud, organizations can efficiently deploy, monitor, and respond to security threats. Furthermore, it includes essential vulnerability and patch management tools, ensuring that any software weaknesses are swiftly detected and rectified. This comprehensive approach not only fortifies the organization's cybersecurity posture but also simplifies the overall management of security protocols and responses.

ESET PROTECT Elite serves as a top-tier cybersecurity platform designed for enterprises, seamlessly combining extensive detection and response capabilities with a robust multilayered defense system. Utilizing cutting-edge techniques like adaptive scanning, machine learning, cloud sandboxing, and behavioral analysis, it effectively combats zero-day vulnerabilities and ransomware threats. The solution delivers modern endpoint protection for both computers and mobile devices, along with server security that ensures real-time data safety and mobile threat defense. Additionally, it incorporates full disk encryption, which aids organizations in meeting data protection compliance requirements. ESET PROTECT Elite also boasts powerful email security features that encompass anti-phishing, anti-malware, and anti-spam measures, while providing protection for cloud applications such as Microsoft 365 and Google Workspace. Its vulnerability management and patch capabilities automate the identification and remediation of security flaws across all endpoints, fostering a proactive approach to cybersecurity. Overall, ESET PROTECT Elite is a comprehensive solution that addresses the evolving challenges of modern cybersecurity threats.

Gblock is a Chrome extension designed to safeguard your privacy in Gmail by preventing email senders from tracking your activities. It offers comprehensive protection against various forms of email tracking, including blocking tracking links and spy pixels while also anonymizing your identity through a proxy service. With its automated tracker detection feature, Gblock continuously updates itself to effectively counter new tracking technologies as they emerge. ✔️ PROTECTION FROM SPY PIXELS ✔️ PREVENTION OF TRACKING LINKS ✔️ AUTOMATED DETECTION OF NEW TRACKERS _________________________________________________________ EXPERIENCE A 30-DAY FREE TRIAL WITHOUT NEEDING A CREDIT CARD After enjoying the initial 30-day free trial, users will need to subscribe for continued access to Gblock's features.

RMail®, the e-security platform from RPost®, is a global leader in 2000. RMail is a specialist in elegantly simple email encryption for privacy, compliance, legal e–delivery proof secure file sharing, email rights management, email impostor protection and email encryption. RMail's transmission security services are often used by businesspeople and business systems that need to send sensitive or consumer-regulated information. These RMail services can be used for messages that require additional functionality beyond standard email. They include (a) an easier-to-use and more automated email encryption to ensure privacy compliance; (b) a verifiable proof record of who sent what email to whom; (c) assurance and peaceof mind in relation to delivery and open status email of important and time-deadline emails, (d) need to have a timestamped proof that content was delivered; (f) the need to securely share large files.

WikiLocks works in the same way as you do. It works within your most used applications. Select the data you wish protect, then assign access to individuals and groups. Finally, distribute the newly protected document. No matter how the document is accessed, copied or pasted, protection will continue to follow it throughout its lifecycle.

The Secure Email Gateway serves as a robust solution for enterprises, employing a complex set of spam filters, antivirus tools, and content analyzers to block unwanted emails from infiltrating your organization's network. Given that security requirements can vary among different team members, it is possible to implement various security protocols tailored to specific roles, such as those in finance or sales. Dome Anti-spam offers the flexibility to create diverse profiles, each equipped with distinct security functions and limitations. Additionally, containment features safeguard against emerging threats like ransomware and zero-day attacks. The Valkyrie file verdict system assesses unfamiliar files, allowing users to access and utilize attachments with complete assurance against infections. Comodo's innovative containment technology guarantees that all potential risks are isolated before they can affect endpoints, thus eliminating any chance of malware infection, regardless of its origin. This comprehensive approach not only enhances security but also instills confidence in employees to perform their tasks without fear of digital threats.

SecurityHQ is a Global Managed Security Service Provider (MSSP) that detects & responds to threats 24/7. Gain access to an army of analysts, 24/7, 365 days a year. Receive tailored advice and full visibility to ensure peace of mind, with our Global Security Operation Centres. Utilize our award-winning security solutions, knowledge, people, and process capabilities, to accelerate business and reduce risk and overall security costs.

We want you to simply focus only on what you do! EmailAuth.io is part of the Infosec Ventures group and our core value lies in taking care of your most valuable digital asset: Email. We thrive to increase your Email Deliverability and help you get the maximum ROI from your mailing campaigns and increase trust amongst your customers, partners and vendors! We don't just provide support, we manage! EmailAuth's methodology includes owning the journey of attaining ultimate security of your domains. Our team of Security Experts and dedicated Customer Success Managers make sure to work with you effortlessly.

Smartlockr is a people-centric data security platform to easily enable secure email and file sharing for an entire organization. By putting the people in an organization first, Smartlockr offers a user-friendy platform that actively helps people prevent data breaches. The reason for that is that the human error is the main cause of data breaches worldwide. Smartlockr works on and with every operating system and device. It's even available as a plug-in for Microsoft 365 (Outlook). Of course, it can be integrated into any existing systems, and it's even available as an SMTP relay service or a combination of all these options. Smartlockr can also be used to securely send and receive large files of up to 5 TB. Smartlockr is compliant with all privacy regulations and security standards like GDPR, ISO, NTA 7516.