Best Email Security Software
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Compare the Top Email Security Software as of January 2026
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What is Email Security Software?
Email security software protects organizations from cyber threats such as phishing, malware, and spam by filtering incoming and outgoing email traffic. It uses advanced threat detection, encryption, and data loss prevention (DLP) to safeguard sensitive information. These tools also offer features like email authentication (DMARC, SPF, DKIM) and real-time threat intelligence to block emerging attacks. By securing email communications, businesses can prevent data breaches, ensure regulatory compliance, and maintain user trust. Email security software is essential for mitigating human error, which is one of the leading causes of data breaches. Compare and read user reviews of the best Email Security software currently available using the table below. This list is updated regularly.
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Guardz
Guardz
Guardz is the unified cybersecurity platform purpose-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. Our identity-centric approach connects the dots across vectors, reducing the gaps that siloed tools leave behind so MSPs can see, understand, and act on user risk in real time. Backed by an elite research and threat hunting team, Guardz strengthens detection across environments, turning signals into actionable insights. With 24/7 AI + human-led MDR, Guardz utilizes agentic AI to triage at machine speed while expert analysts validate, mitigate, and guide response, giving MSPs scalable protection without adding headcount. Our mission is simple: give MSPs the scale, confidence, and clarity they need to stay ahead of attackers and deliver protection to every SMB they serve. -
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SpamTitan
TitanHQ
SpamTitan email security is an email spam filter for businesses, smbs, MSPs, and schools. SpamTitan email security blocks spam as well as phishing and day-zero attacks, viruses, malware, ransomware, and other email threats. Helps control mail flow, clean it, and protect against unwanted email. We provide easy-to-use yet advanced email security for businesses, smbs and MSPs that are Office365 friendly. SpamTitan - Premium functionality included: • CEO Impersonation protection • Phishing/ Spear phishing protection • Link analysis • Full Sandboxing • Zero Day Attacks protection • Mail Spooling • Spoofing protection • Malware and Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Fully multitenant environment • Ability to rebrand the entire UI • Full REST API: • Comprehensive support and set up docs Try a FREE, fully supported trial of SpamTitan Email Security today.Starting Price: $2.14/user/month -
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EasyDMARC
EasyDMARC
EasyDMARC is a B2B SaaS solution that makes email authentication simple for small, medium, and enterprise businesses. In short, we secure domain and email infrastructure, protecting you and your business from phishing (email spoofing) attacks and increasing email deliverability. EasyDMARC’s deliverability tool, EasySender, covers all the aspects of email deliverability. The variety of features on the platform cover email list verification, mailbox warmup, and inbox placement. With EasyDMARC, you can achieve the following: -Visibility to the business email environment -Business identity control -Operations and communication security -Email deliverability With offices in the US, Netherlands, and Armenia, the company delivers the most comprehensive products for anyone who strives to build the best possible defence for their email ecosystem. EasyDMARC ultimately provides peace -
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Bitdefender Ultimate Small Business Security
Bitdefender
Bitdefender Small Business Security delivers enterprise-grade, layered cyber-protection designed specifically for small organizations. It covers Windows, macOS, iOS, and Android devices with centralized, easy-to-use management, so businesses without a dedicated IT staff can deploy and monitor security from one dashboard. Key features include multi-layered endpoint protection (machine learning, behavioral analytics, real-time monitoring, process termination, and rollback) to prevent known and unknown threats. It offers ransomware prevention and mitigation (detecting abnormal encryption attempts and restoring files from backups), fileless attack protection (memory/back-injection interference, script blocking), phishing & fraud prevention (blocking deceptive sites and warning users), and advanced exploit protection (real-time shield of browsers, Office apps, Adobe Reader) for comprehensive endpoint defense.Starting Price: $18.99 per month -
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Encyro
Encryo Inc
Encyro offers secure file sharing, encrypted email, and electronic signatures. Encyro's award winning design makes the process easy for both you and your clients. You need not ask clients to sign up for any portal accounts. Encrypted Messaging and File Sharing You can directly send to any email address and Encyro automatically keeps your data secure both during transmission and storage to let you comply with HIPAA, GLB, IRS, GDPR, FINRA, SOX and other compliance standards. You can receive securely via your custom branded upload page that does not require the client to login or jump through hoops. Electronic Signatures Encyro e-signatures are designed to keep your transaction secure during remote signing. You control the login options and the type of signature to ensure that the right person is signing. Encyro also provides custom branding, automated reminders, and re-usable e-sign templates. NIST-800-63 compliant access codes by text/SMS for added security.Starting Price: $9.99/month/user -
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Paubox
Paubox
Healthcare's simple, easy, and scalable way to email secure, HIPAA compliant patient information. Keeping patient data secure and remaining HIPAA compliant is a top concern for healthcare organizations, especially when it comes to email. Paubox Email Suite provides guaranteed encryption so you can rest assured your patient data is protected. Our HIPAA compliant email service removes the hassle of portals and passcodes by sending encrypted emails that can be read right in your recipient’s inbox. Healthcare email encryption is easy with our patented tools which integrate easily into your existing email system with no training necessary for employees. Paubox HIPAA compliant email service is designed to empower IT and simplify the process for end-users, making the frustrations and vulnerability of emailing PHI a thing of the past.Starting Price: $29/month -
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FileWall
Odix
odix - a market leader in Enterprise CDR (Content Disarm and Reconstruction), is now offering FileWall, a native cybersecurity application for Microsoft Office 365 mailboxes for SMEs. FileWall™ is designed to run in conjunction with existing Microsoft security solutions such as EOP and ATP, ensuring complete prevention against unknown attacks delivered via email attachments. FileWall™ doesn’t harm/change any of Microsoft sender related security capabilities.Starting Price: $1 per user, per month -
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KDMARC
Kratikal Tech
KDMARC is an email authentication and anti-spoofing solution that helps organizations in securing their outbound mail flow. KDMARC's Dynamic SPF feature allows the whitelisting and blacklisting of domains and IPs in a single click on the KDMARC dashboard. Dynamic DMARC allows the change in policy (None, Quarantine and Reject) at real time. The tool is aimed at helping customers take relevant security actions in a timely manner to ensure more robust email security. KDMARC allows organizations to trust their mailbox by ensuring prevention of brand abuse, increasing email deliverability, prohibiting malware & ransomware attacks thus, boosting email engagement rate. -
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Heimdal® Endpoint Detection and Response is our proprietary multi-solution service providing unique prevention, threat-hunting, and remediation capabilities. It combines some of the most advanced threat-hunting technologies: - Next-Gen Antivirus - Privileged Access Management - Application Control - Ransomware Encryption Protection - Patch & Asset Management - Email Security - Remote Desktop - Threat Prevention ( DNS based ) - Threat Hunting & Action Center With 9 modules working together seamlessly under one convenient roof, all within one agent and one platform, Heimdal Endpoint Detection and Response grants you access to all the essential cybersecurity layers your business needs to protect itself against both known and unknown online and insider threats. Our state-of-the-art product empowers you to quickly and effortlessly respond to sophisticated malware with stunning accuracy, protecting your digital assets and your reputation in the process as well.Starting Price: $0/month
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N-able Mail Assure
N-able
N-able Mail Assure cloud-based email security solution provides advanced threat protection for inbound and outbound email using collective threat intelligence, 24/7 email continuity, and long-term email archiving. The service includes a multitenant web-interface with predefined settings, reporting, and views designed to ensure control and visibility over email flows. N-able Mail Assure’s proprietary technology incorporates input from processing large volumes of email data that feeds the Intelligent Protection and Filtering Engine. This combined with real-time pattern threat recognition leveraging a variety of filtering technologies help protect against spam, viruses, phishing attacks, impersonation, spoofing, malware, and other email-borne threats. -
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Trustifi
Trustifi
Trustifi offers industry-leading solutions for email security that helps small, mid-size, and enterprise organizations manage threat detection, regulatory compliance, data encryption & more. Easily deployed on: Outlook, Gmail, or any email server by relay **Advanced Threat Protection**: -Malware and ransomware virus detection, BEC attack prevention and alerts **Data Loss Prevention**: -100% compliant with HIPAA/HITECH, PII, GDPR, FSA, FINRA, LGPD, CCPA, and more **Encryption**: -NSA-grade. Select Enterprise customers have access to company branding and product white labeling. Plus one-on-one team training. Encryption needs aren’t one-size-fits-all, so your email security platform shouldn’t be either. Customized solutions are available upon request, often without charge. -
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365 Total Protection
Hornetsecurity
365 Total Protection from Hornetsecurity offers comprehensive protection for Microsoft cloud services – specially developed for Microsoft 365 and seamlessly integrated to provide comprehensive protection for Microsoft cloud services. Easy to set up and extremely intuitive to use, 365 Total Protection simplifies your IT Security management from the very start. Protect your Microsoft 365 against phishing, ransomware, advanced threats and data loss with 365 Total Protection Enterprise Backup, a unique cloud-based, all-in-one security and backup suite. Benefit from the expertise of Hornetsecurity, leading email security and backup specialists, known for their tried and tested, award-winning solutions, 365 Total Protection (email security for M365) and 365 Total Backup (backup and recovery for M365). -
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PhishTitan
TitanHQ
Powerful Inline Phishing Protection for M365. Harness the power of AI and our LLM to defeat phishing. PhishTitan is next generation inline phishing protection and remediation, powered by TitanHQ, the global leaders in email cybersecurity. Our proprietary large learning model and AI integrates directly with Microsoft 365, both catching and remediating sophisticated phishing and BEC attacks that Microsoft misses. It provides users with in-the-moment warning banners to help them decide whether an email is malicious or safe, continually enhancing the human firewall. Risk free deployment in 6 minutes. PhishTitan will filter your email to identify phishing threats and protect your users and business. That’s how you AVOID that one wrong click that can lead to disaster – all it takes is 6 minutes! The TitanHQ team has been a category leader in the email security field for over 20 years. Bringing the experience of working with over 12,000 customers to our new phishing solution. -
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Advanced protection to safeguard your inboxes. Email is still the No. 1 threat vector. Expand the scope of your defenses to detect dangerous threats and rapidly respond to and remediate new threats in real time. Identify the malicious techniques used in attacks targeting your organization. Understand the specific business risks and categorize threats to gain insight into the parts of your organization that are most vulnerable to attack. AI-driven threat detection uses multiple detection engines to simultaneously evaluate different portions of an incoming email. These verdict details help ensure accurate threat classification, identify business risk, and promote an appropriate response action. Threats come from numerous sources: phishing, business email compromise, malware, and ransomware. Defend against all of them with industry-leading threat intelligence that empowers you to act quickly.
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PreVeil
PreVeil
PreVeil applies end-to-end encryption in a radically different way. We protect organizations’ email & files from phishing, spoofing, BEC & more. Seamless for users. Easy for admins. PreVeil provides the enterprise with an easy-to-use encrypted email and encrypted cloud storage solution to protect important email and files. Moreover, PreVeil uses the gold standard of end-to-end encryption to secure data. PreVeil also provides the enterprise with a “Trusted Community” for communicating with fellow employees, contractors, vendors or other third parties. With a Trusted Community, employees can communicate and exchange information without worrying about being phished, spoofed, becoming victims of BEC, or having their admins compromised.Starting Price: $20 per user per month -
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Zivver
Zivver
Zivver is the effortless, smart, secure digital communications platform powering the next generation of secure digital communications. Trusted by over 5,000 organizations globally, Zivver prevents data leaks caused by human error and ensures compliance. Zivver seamlessly integrates with all major email clients including Gmail, Outlook, and Microsoft 365 and features unparalleled zero-keys encryption, with smart features such as contextual machine learning powered business rules. Zivver allows anyone to share large files up to 5TB securely via their existing email client. Zivver is fully compliant with all leading data security standards, including ISO 27001, NTA 7516, GDPR, HIPAA.Starting Price: 0.99€/month/user -
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SecurityGateway™ for Email Servers
MDaemon Technologies
Developed by MDaemon Technologies, an email industry pioneer, Security Gateway's email threat detection technology has been protecting email servers from viruses, spam, phishing, data loss and other threats for over 20 years. Simply put, companies trust our expertise to help keep email communications safe. We protect all email platforms including Microsoft Exchange, Office 365 and others. Let our team of email security experts take the headache out of managing your company's email security needs. Security Gateway uses the latest email threat detection technology and policy enforcement tools to keep good emails flowing to and from your users. The Security Gateway cloud service can be deployed quickly and easily, allowing you to focus on other important tasks. Watch a short video to learn about some of the Security Gateway features.Starting Price: $1 per user per month -
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Hornetsecurity Advanced Threat Protection
Hornetsecurity
With the comprehensive features of Advanced Threat Protection, even the most sophisticated cyber-attacks have no chance: Freezing, URL scanning and rewriting, the Sandbox Engine and Malicious Document Decryption are able to cope with a multitude of methods in order to ward off all potential threats. Thus protecting your IT infrastructure from threats like Ransomware, Targeted Attacks, Business Email Compromise and many more. -
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Symantec Email Security.cloud
Broadcom
Safeguard Microsoft Office 365, Google G Suite, and on-premises email with the industry’s most complete email security solution. Insulate users from spear phishing, credential theft and ransomware attacks by using Email Threat Isolation. Prevent insidious email threats such as spear phishing, ransomware, business email compromise and email spam. Stop spear phishing emails with multiple layers of protection, threat isolation, spam filtering, advanced security email analytics, built-in user awareness, education tools, and more. Block the latest ransomware with content defense, sandboxing, and link protection technologies that detect emerging, stealthy, and zero-day attacks. Defeat business email compromise with impersonation protection, sender authentication enforcement and brand protection controls. Protect your brand reputation by using automation to solve the practical issues of enforcing sender authentication (DMARC, DKIM and SPF) with Symantec Email Fraud Protection. -
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Tuta
Tuta
Tuta offers a highly secure, encrypted email, calendar, and contacts service designed to give users complete control over their data. With end-to-end encryption powered by quantum-safe cryptography, Tuta ensures that all your communications are private and safe from surveillance. The platform is easy to use, supports mobile apps for Android and iOS, and is ad-free, offering a seamless experience across multiple devices. Tuta is committed to using renewable energy to power its servers, ensuring privacy while contributing to a greener future.Starting Price: €1.20 per month -
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OnDMARC
Red Sift
OnDMARC is a Red Sift product. Red Sift is an open cloud platform that makes cybersecurity accessible to everyone to prevent cyber attacks. OnDMARC makes implementing and maintaining a secure DMARC policy easy. OnDMARC not only processes complex XML reports for you but, combined with machine learning and excellent customer support, gets users to full protection quickly but sustainably. Some of our unique features include: - Investigate - View changes to your DNS live instead of waiting 24 hours - Dynamic SPF - Overcome the 10 DNS lookup limit - Threat Intelligence - Automatically classify IP Sources - External Accreditation - ISO27001 certified - Dedicated support - Live Chat & 750+ Knowledge Base Articles Our partnerships with Verified Mark Certificate (VMC) Providers also supports customers to deploy BIMI.Starting Price: $35.00/month -
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SEPPmail
SEPPmail AG
Sending and receiving digitally signed and encrypted emails is easier and more convenient than ever before. Thanks to the Secure E-Mail Gateway from SEPPmail with integrated and patented GINA procedure for spontaneous encryption, SMEs and large companies secure their entire e-mail communication at the highest level, with the least effort and simplest handling for sender and recipient. With its comprehensive Secure Email solution, SEPPmail is setting new standards for secure, GDPR-compliant email communication. As one of the world’s leading email encryption and signature solutions, SEPPmail includes all the features to protect the sending of confidential data via email, guarantee the authenticity of the sender and ensure the confidentiality and integrity of the message. Thanks to its modularity, the secure e-mail gateway solution can be configured according to customer-specific requirements and expanded seamlessly.Starting Price: 4.5 € per user per month -
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VIPRE Email Security
VIPRE Security Group
VIPRE Email Security protects your email users and business network from the latest, most sophisticated malware, weaponized attachments, and phishing threats that bypass traditional detection methods. As a secure email gateway, it analyzes inbound and outbound emails in real-time for threats. Powerful visual analytics provide visibility into ongoing attacks, enabling quick and precise response to threats. With a simple integration into Microsoft 365, VIPRE can remove malicious or suspicious emails from a user’s inbox even after delivery. Available in two versions: VIPRE Email Security Cloud provides strong core protection, while VIPRE Email Advanced Threat Protection offers advanced, AI-driven techniques for file attachment and link analysis.Starting Price: $30/seat/year -
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Spambrella
Spambrella
Dynamically classify imposter email. Preemptively identify and sandbox suspicious URLs. Leverage big-data analysis to accurately classify bulk mail. All within a single service that connects with Microsoft 365 and Google Workspace. Spambrella’s Email Security and User Awareness Training technology is used by some of the World’s largest and most successful security-conscious companies in a multitude of continents and environments. Delivered on a global scale, Spambrella is ready to unify your email security and user awareness training requirements. Think of us as your outsourced email security team! We have deep technical expertise of all other service providers such as MxLogic, Mimecast, Symantec.cloud and know how to migrate you effortlessly. Schedule a demo today with our cybersecurity experts to uncover email threats targeting your email users.Starting Price: $1.00 -
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Send It Secure
Protected Trust
Send and receive secure emails that enable you to meet HIPAA & GLBA compliance standards. Protected Trust Email Encryption is now Send It Secure by Protected Trust. You may know us as Protected Trust Email Encryption, or perhaps just Protected Trust. As our email encryption product has grown and our company offerings have increased, we believe it is the right time to create a new brand for our email encryption product. Our new brand comes with the product the market has learned to trust, and we welcome an even better user experience and an improved product designed to meet your needs. We are recognized as one of the most powerful encryption solutions on the market for the secure exchange of confidential data. Your trust and protecting your data are our priority. We are excited to bring you our updated email encryption solution, Send It Secure by Protected Trust.Starting Price: $15 per month -
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Guardian Digital
Guardian Digital
Guardian Digital secures against email threats like phishing, zero-day exploits and ransomware attacks that define the modern threat landscape email users face every day. We believe email security is business security, as greater than 90% of all cyber attacks originate from an email. The most effective email protection is delivered through a purpose-driven solution designed to close critical security gaps in Microsoft 365 and Workspace, coupled with the expert setup, ongoing remote system management and accessible support required to improve IT security. With real-time cybersecurity business insights, we help you understand what your risk profile is today, and protect you from the dangers that all businesses face. EnGarde Cloud Email Security - Key Features: • Phishing, spoofing & impersonation protection • Link & file analysis • Zero-day attack protection • Malware & Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Comprehensive management & support serviceStarting Price: Monthly & Annual Subscriptions -
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DocsCorp
DocsCorp
Document management professionals turn to DocsCorp when they are looking for easy-to-use software that empowers them to work safer and smarter. We are a global brand with more than 500,000 users in over 65 countries. Our product portfolio is a list of must-have technologies that include document creation, email recipient checking, metadata cleaning, document comparison, PDF creation, and image file conversion to PDF, which can be accessed on the desktop, server or cloud. Our products integrate out-of-the-box with leading enterprise content management systems to streamline processes and to drive business efficiency. We offer organizations a combination of on-premises and cloud integrations. We work with industries that are document-centric to help them manage their most critical asset - documents. This includes Government Departments, Legal Services, Financial Services, and Technology companies.Starting Price: $49.50/user -
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CB Exchange Server Sync
Connecting Software
CB Exchange Server Sync is the solution for secure synchronization and migration of data between Exchange Servers. It enables easy synchronization of multiple Outlook accounts hosted in Exchange Server or Office 365. Fully customizable to your business needs. It can be used as one-way or two-way synchronization of calendars, emails, tasks, contacts, and public folders. This solution supports seamless migration of your entire Exchange / Outlook model to Office 365, or other Exchange versions from Exchange 2010 SP1 and all newer ones. Great in combination with: • CB Super Secure Exchange Server, the solution to prevent hackers from using Exchange Server as entry point to a secure network. • Exchange/ Outlook Content Censor, access your Exchange account outside the company without exposing sensitive information. You can control what to restrict such as: attachments, address, signatures, names, documents and more.Starting Price: $4.99 per user/per month -
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dmarcian
dmarcian
Our DMARC management platform visualizes DMARC data in powerful and meaningful ways so you can quickly identify authentication gaps with your SPF and DKIM configurations, as well as unauthorized use of your domains. In addition to aggregating DMARC data, our platform provides domain administration teams with the necessary features to adopt DMARC with clarity and confidence. Providing actionable insights, it is powered by the most accurate source classification engine in the industry and affords users with assurances of the true origin of a particular mail stream. dmarcian has been processing DMARC data since the inception of the specification in 2012. -
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LuxSci
Lux Scientiae
LuxSci provides HIPAA-compliant web and email communications services. LuxSci creates uniquely secure and customizable enterprise-grade environments and solutions that enable organizations to confidently meet their specific business and security needs at scale. LuxSci’s HIPAA-compliant email and web solutions are HITRUST certified and include: • Secure High Volume Sending for delivering massive volumes of transactional and marketing emails. • Secure SMTP Connector for encrypting outbound emails sent from Microsoft 365 and Google Workspace. • Secure Email Marketing platform for creating and sending marketing campaigns with ePHI. • Secure Email Hosting for reliable and secure day-to-day business email. • Fully managed Secure Web and Database Hosting for web applications that require compliance. • Secure Forms to safely collect and store sensitive information. LuxSci provides a full suite of secure technology for companies requiring compliant web and email services.Starting Price: $4 per/user/month
