Best Email Security Software for Microsoft 365 - Page 3

Find and compare the best Email Security software for Microsoft 365 in 2026

Use the comparison tool below to compare the top Email Security software for Microsoft 365 on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

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    Armorblox Reviews
    Armorblox employs advanced natural language understanding, deep learning algorithms, and statistical methods to safeguard enterprise communications from various inbound threats and mitigate outbound data loss. The platform harnesses a diverse array of data sources, signals, and detection methodologies. It effectively combats issues such as business email compromise, account takeovers, executive impersonation, and other targeted threats. Users can examine in-depth attack analyses designed for human comprehension. The system can automatically delete, quarantine, or label emails according to set policies. It also identifies violations related to personally identifiable information (PII) and payment card information (PCI), as well as any passwords disclosed in emails. Furthermore, it prevents the distribution of outbound emails containing sensitive information. The platform is adept at thwarting lateral data leaks across various communication channels, including email, messaging, and file-sharing services. It can also auto-remediate any reported false positives swiftly. With a single click, users can eliminate similar suspicious emails from multiple user mailboxes. By utilizing dynamic policies, Armorblox enhances its ability to thwart similar attacks in the future, ensuring a robust security posture. In addition, continuous learning and adaptation to emerging threats are integral to the platform's effectiveness.
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    SilverSky Email Protection Suite Reviews
    Email remains the primary entry point for cybersecurity threats. Traditional signature-based antivirus and basic reputation-focused anti-spam measures fail to adequately defend against the increasingly sophisticated payloads and social engineering tactics employed today. It is essential to safeguard yourself against various threats, including ransomware, malware, phishing attacks, and business email compromise. As regulatory demands become more rigorous, implementing email security best practices is crucial to protect both your internal systems and customer information while preserving email archives. Enhance the functionality of your cloud email and collaboration tools with a focus on security. Many organizations invest in email, productivity, and collaboration solutions primarily to boost office efficiency without considering the security implications. SilverSky provides a comprehensive suite of cloud email, productivity, and collaboration tools designed with integrated security features to ensure robust protection. By prioritizing security in your digital collaboration efforts, you can create a safer work environment.
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    Graphus Reviews
    90% of cyberattacks that result in data breaches start with phishing emails. Graphus, a cost-effective and affordable automated phishing defense solution that protects customers from today’s most serious cyber threats, is available to all companies. Graphus uses a patented AI algorithm that quickly detects and quarantines suspicious emails. This is a powerful way to increase your clients' security (and MRR). Automated phishing protection for Office 365 or G Suite. Graphus' innovative AI, which is unique and innovative, learns from each company's communication patterns and improves their security posture. This gives you and your clients peace-of-mind. TrustGraph®, automatically detects and quarantines potentially dangerous emails that have passed through an email platform security or an existing Secure Email Gateway. EmployeeShield®, which adds an interactive warning banner for questionable messages, prompts recipients to either quarantine them or mark them as safe.
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    DuoCircle Reviews
    Dependable and safe email hosting solutions for both small to medium-sized businesses and large enterprises. We manage the secure processing of over 100 million emails each month for our clients. Our services include enhanced gateway security, robust filtering systems, inbound email protection, email service backups, and outbound SMTP, all built on a cutting-edge infrastructure to deliver the high-quality results our clients expect. Our offerings encompass a secure email gateway, backup MX services, email forwarding, outbound SMTP, and various additional features. DuoCircle provides robust protection against phishing attempts through its Link Click Protection, which is integrated into the Advanced Threat Defense Suite. This feature ensures that even if the content of a website changes between clicks, you remain protected from potential threats. With Link Click Protection, your sensitive corporate information is safeguarded, as employees are blocked from accessing sites that could exploit such data. Additionally, you receive immediate alerts when a suspicious link is about to be clicked, ensuring your security remains a top priority. Overall, our comprehensive email security solutions enhance the safety of your communications and provide peace of mind for your organization.
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    Intermedia Exchange Email Reviews

    Intermedia Exchange Email

    Intermedia Cloud Communications

    For many companies, selecting the appropriate email and productivity tools for employees is relatively straightforward, with reliable and feature-rich options like Microsoft Office, Exchange Email, and Microsoft 365 readily available. However, navigating the various plans can prove to be quite challenging. Intermedia can assist you in determining the most suitable plan and combination of features for your organization, whether your needs include Exchange Email, Office applications, compliance and security measures, or advanced versions of Microsoft 365. The Editors' Choice Exchange Email by PC Magazine boasts a remarkable 99.999% SLA and is backed by J.D. Power-certified support, while Microsoft 365 offers essential applications such as Word, Excel®, PowerPoint®, and Outlook®. Additionally, you can benefit from comprehensive compliance and security features, which encompass Archiving and Encryption, as well as tailored deployment options suitable for single tenant setups with over 500 users. Furthermore, expert migration and onboarding services are provided at no extra cost, ensuring a seamless transition. Although email serves as a vital component, it operates best when integrated with other business tools.
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    Mailwall Reviews
    Explore how Omniquad’s cloud-based IT security solutions can fulfill all your digital security requirements. Their offerings include email filtering, web filtering, archiving, data loss prevention, and more. In today's landscape, securing email extends beyond merely defending organizations against viruses and spam—it has evolved into a vital line of defense against cyber threats. Email serves as a primary vector for a significant portion of these threats, making cybersecurity a pressing business concern rather than merely an IT challenge. To effectively manage this risk, a holistic and cross-functional strategy is essential. Recognizing that many cyber threats exploit straightforward and non-technical methods, solutions must blend both social awareness and technical defenses. Key vulnerabilities often arise from actions like clicking on links in emails, opening malicious attachments, carelessly downloading harmful software, or using weak passwords. Most of these issues can be mitigated through a robust email security framework, establishing a potent synergy between Office 365 and Mailwall Cloud. In this way, organizations can significantly enhance their defenses against evolving cyber threats.
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    GreatHorn Reviews
    As organizations transition to cloud-native email solutions, it becomes crucial to reassess email security measures to counteract the increasingly complex nature of zero-day attacks and intricate social engineering tactics, such as business email compromise and email account compromise. The GreatHorn Cloud Email Security Platform revolutionizes risk management by incorporating advanced detection mechanisms for polymorphic phishing threats alongside user engagement and streamlined incident response, enabling organizations to tackle sophisticated threats as they arise within their systems. With no alterations required for mail routing or MX records, the platform can be deployed in just five minutes, equipped with default policies that offer immediate protection. Leveraging artificial intelligence and machine learning, it effectively pinpoints areas of risk, identifies patterns of threats, and detects zero-day phishing attempts, thereby minimizing response times. Additionally, continuous user engagement is essential, as it provides real-time training for end users when they encounter a potential phishing threat in their inbox, enhancing overall security awareness. This proactive approach ensures that organizations remain resilient against evolving cyber threats.
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    Proofpoint Adaptive Email Security Reviews
    Proofpoint's Adaptive Email Security delivers sophisticated and unified defense against various email-based risks such as phishing and Business Email Compromise (BEC). Utilizing behavioral AI technology, this solution evolves in response to changing threats, providing immediate protection throughout the email delivery process. By integrating email security into a cohesive platform, businesses can streamline their operations, minimize the complexity of multiple vendors, and realize considerable savings in both time and expenses. Furthermore, it includes advanced functionalities like internal mail protection, real-time coaching, and a comprehensive view of email security, making it a vital resource for safeguarding confidential communications and maintaining regulatory compliance. Organizations that implement this solution not only enhance their security posture but also foster a more efficient workflow across their email systems.
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    Cyren Reviews
    Cyren Inbox Security represents a cutting-edge approach that actively counters phishers while protecting every Office 365 mailbox within your organization from sophisticated phishing attempts, business email compromise (BEC), and fraudulent activities. With ongoing monitoring and detection capabilities, it ensures early identification of subtle attack indicators and anomalies. The system's automated response and remediation processes efficiently manage both individual and collective mailboxes across the organization, alleviating the burden on IT teams. Additionally, its distinctive crowd-sourced user detection mechanism enhances the feedback loop for alerts, bolstering your security training efforts and offering critical threat intelligence. A thorough and multidimensional presentation of essential threat characteristics equips analysts with the insights needed to navigate the continuously shifting threat landscape. Furthermore, it enhances the threat detection capabilities of existing security solutions like SIEM and SOAR, ensuring a more robust defense system. By integrating these advanced features, organizations can significantly strengthen their overall email security posture.
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    Retarus Reviews
    As a frontrunner in information logistics, we facilitate seamless communication for businesses across the globe. Our advanced infrastructures, proprietary technology, and exceptional support make this possible. The speed and security with which your information circulates directly impact your operational efficiency. Are you prepared to embrace Retarus? The success of a business relies heavily on nimble and secure communication mechanisms that support their digitized and automated processes. Whether it's newsletters, order confirmations, password resets, or status updates, the rapid delivery of transactional emails is crucial for enhancing the customer experience. Retarus enables you to connect with 99% of all mobile networks, ensuring that nearly everyone worldwide is within your reach, quickly and dependably. Explore our case studies to discover how you can enhance your customer interactions with our enterprise SMS services. You can send tailored content reliably, even to extensive distribution lists, whether through email, fax, or SMS—all through a standardized and user-friendly platform. Communicate effortlessly directly from your web browser, streamlining your communication processes like never before. With Retarus, your business will not only stay connected but will thrive in an increasingly digital landscape.
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    activeDEFENCE Reviews
    Threats to your organization's infrastructure are increasingly relentless, ranging from malware and advanced persistent threats (APTs) to extortion and internal breaches. In the modern business landscape, it is essential to account for the proliferation of smartphones, tablets, and the consumerization of IT, in addition to the complexities introduced by telecommuters, contractors, partners, and critical services hosted in the cloud. The importance of robust security measures has escalated, becoming more intricate than ever before. To effectively safeguard your information and systems, an adaptable and multi-layered defensive strategy is necessary, covering all aspects of your IT environment, including the network, perimeter, data, applications, and endpoints, while also addressing and managing vulnerabilities that could expose your organization to potential risks. activereach offers a comprehensive portfolio of network security solutions designed to shield your business from evolving threats, improve network performance, and enhance operational efficiencies, ensuring a more secure and resilient infrastructure. As the digital landscape continues to evolve, staying proactive in security measures is crucial for long-term success.
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    Proofpoint Essentials Reviews
    Proofpoint Essentials provides an affordable and user-friendly cybersecurity solution tailored for small and medium-sized businesses (SMBs). This service offers robust protection against a wide array of sophisticated security threats and comes with added features like security awareness training, data loss prevention, email continuity, archiving, and social media safeguarding. Its straightforward and intuitive interface minimizes the burden on administrators and integrates effortlessly with your current Microsoft 365 setup. Utilizing the same AI-driven detection technology that secures a significant portion of Fortune 100 companies, Proofpoint Essentials focuses on safeguarding your organization’s most vulnerable asset: its people. With enterprise-level protection, Essentials effectively mitigates various threats that target SMBs, including spam, phishing, business email compromise (BEC), impersonation emails, ransomware, and malware, ensuring a comprehensive defense against cyber risks. In an increasingly digital landscape, investing in such a solution is essential for maintaining the integrity and security of your business operations.
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    Barracuda Email Threat Scanner Reviews
    A staggering 98% of organizations utilizing Microsoft 365 encounter malicious emails in their inboxes. The Barracuda Email Threat Scanner has revealed over 10 million spear-phishing attacks lurking within various organizations' email systems. More than 16,000 organizations have utilized this tool, unearthing sophisticated threats in their email accounts. Best of all, the scan is completely free, and you'll start receiving insights within minutes of initiating it. Powered by advanced artificial intelligence, our platform discerns the intent of email senders to effectively identify social engineering threats. You’ll gain an in-depth view of each email threat, categorized by time, employee, and type of threat, along with a summary of your domain's DMARC status. It's important to note that email threats are not uniformly distributed among employees; thus, you can assess the individuals in your organization who are most vulnerable by analyzing their job titles, risk factors in their communications, and the total number of attacks they face. This thorough investigation can significantly enhance your organization's email security posture.
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    Rotate Reviews
    Utilize the Rotate cloud security platform to fortify any organization with its flexible hubs and smooth integrations tailored to expand your security capabilities. Enhance your understanding of cyber threats and streamline response efforts by recognizing alerts across all hubs, linking them together, and ranking incidents based on their risk severity. Through Rotate’s XDR, you can effectively synthesize, consolidate, and oversee all hubs. Take advantage of your multi-tenancy control center for conducting vulnerability assessments and executing swift deployments. Manage an unlimited number of clients from a single interface, which simplifies oversight. Equip your business clients with a robust cybersecurity framework while minimizing potential portfolio risks. Rotate safeguards a wide array of organizations in today’s digital-first landscape. Achieve extensive cybersecurity for every employee accessing email or utilizing a device at work. While cyber insurance is a crucial consideration for any business facing the threat of cyber attacks, securing coverage can often be costly. The thorough protection offered by Rotate can significantly mitigate overall insurance expenses, allowing businesses to focus on growth and innovation. This comprehensive approach not only enhances security but also fosters trust with clients and partners.
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    CyberSentriq Reviews
    CyberSentriq is the unified brand created through the merger of TitanHQ and Redstor, bringing together more than 25 years of award‑winning security and data protection innovation. Today, CyberSentriq protects over 150,000 SMBs and supports more than 3,000 MSPs globally with an end‑to‑end, AI‑driven cybersecurity and data protection stack. At its core, CyberSentriq helps MSPs secure Microsoft 365 and email‑centric workloads by combining backup and recovery, advanced email security, threat protection, data archiving, and security awareness training within one centrally managed platform. This unified approach enables MSPs to deliver consistent protection, streamline onboarding, and manage multiple customers efficiently from a single interface. CyberSentriq supports Microsoft 365 backup and recovery to help MSPs protect critical business data against accidental deletion, ransomware, and data loss scenarios. Secure, reliable recovery capabilities allow service providers to restore emails, files, and user data quickly, supporting business continuity and regulatory requirements. Advanced email security and threat protection form another core pillar of the platform. CyberSentriq is designed to help MSPs defend customers against phishing, malware, business email compromise, and other email‑borne threats that remain a primary attack vector for organisations of all sizes. By combining layered protection with centralised management, MSPs can reduce risk while maintaining operational efficiency. CyberSentriq also includes email archiving and data retention capabilities, helping MSPs support compliance, eDiscovery, and long‑term data governance requirements. Centralised archiving allows customers to retain and search historical communications without relying solely on native mail
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    ContentCatcher Reviews
    Our platform has been meticulously designed to tackle the sophisticated threats that exist in today's digital landscape. Regardless of whether your organization employs 5 or 10,000 people, ContentCatcher serves as an optimal solution. Email remains the primary medium for business communication, and any downtime of your email server or provider can lead to significant financial repercussions. ContentCatcher boasts a 24/7 emergency inbox that activates automatically during outages, ensuring your operations continue smoothly. Users can access this emergency inbox through our online portal, which is equipped with a fully functional email client for sending and receiving messages, allowing for seamless continuity in work with minimal interruption. Both small and large enterprises face similar email threats, as malicious actors often target organizations without regard for their size or industry. It is crucial to have a robust email security solution in place to safeguard your business effectively. With a variety of packages available, ContentCatcher adapts to meet your current and future needs, ensuring you are always protected. Our commitment to evolving with your business ensures that you stay one step ahead of potential threats.
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    Retruster Reviews
    Protect all users from Phishing emails and Ransomware. 90% of cyber attacks use fake emails to gain access to your company. One Phishing email can result in massive costs, often reaching the hundreds or thousands, as well as Ransomware, Identity Theft, and Data Breaches. The best phishing solution ensures that your business is protected. You can rest assured that all employees are protected and that you will never be left wondering if an email might pose a threat to your business. Retruster is the best choice when it comes to preventing email phishing. All you need to do is enter your Microsoft username password and you're good to go. No downloads required. Retruster is a Microsoft™, Partner Network member and Microsoft™, Appsource member. It is the ultimate Office 365 anti-phishing tool. It can also be used with other solutions.
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    Datto SaaS Protection Reviews

    Datto SaaS Protection

    Datto, a Kaseya company

    Securely and reliably backup Microsoft 365 and Google Workspace (formerly G Suite). This will ensure that critical business programs, email, and docs are protected against cyber threats and downtime. Datto SaaS Protection, a cloud-to–cloud backup solution, is designed exclusively for MSPs and protects thousands of businesses. Datto SaaS Protection provides comprehensive backup, recovery, and overall cyber resilience for critical cloud data that lives within Microsoft 365 and Google Workspace apps. One-click restore allows you to quickly recover from ransomware and user-error, and protect your data against permanent loss. Easy onboarding makes it easy to get new clients up and running quickly. Client backups can be managed from one pane of glass. Discounts are applied to all licenses sold by your clients. This means that the more you sell the more you will make. You can meet compliance, security, and business continuity requirements beyond Microsoft 365 or Google Workspace.
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    GBS iQ.Suite Reviews
    The adoption of collaboration tools and meeting platforms from providers like Microsoft and CISCO is on the rise, leading to an urgent need for enhanced security measures. As organizations expand their communication channels and navigate increasingly intricate IT infrastructures, many of these platforms are now fully cloud-based, resulting in the emergence of new gateways and potential attack vectors. Although most businesses are diligently enhancing their email security protocols, they frequently neglect to safeguard against harmful files that can infiltrate their systems through platforms like SharePoint or messaging apps. Current security solutions are often inadequate and fail to provide comprehensive protection. To effectively address these challenges, the platforms offer a centralized cloud solution that enables companies—regardless of size—to swiftly adapt to the evolving threat landscape and bolster their defenses against emerging risks. This approach not only enhances security but also fosters a more resilient operational environment.
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    Clearedin Reviews
    In today's work environment, collaboration occurs across various channels. Clearedin stands out as the sole email security solution designed specifically to interface seamlessly with the diverse platforms utilized by your organization, including Microsoft 365, Google Workspace, Slack, and Zoom. This platform is particularly beneficial for organizations that leverage multiple cloud services for collaboration. By providing unparalleled cross-platform visibility and incident response capabilities, Clearedin empowers security teams, regardless of size, to enhance their operational effectiveness. Utilizing artificial intelligence, Clearedin assesses the behavior of incoming emails against the historical data of the sender, identifying any inconsistencies that may suggest potential account compromise. When a potential threat is detected, Clearedin promptly notifies the user, warning them that an email from a known contact could be the result of a compromised account. Furthermore, Clearedin takes proactive measures by locking the suspicious email, preventing any interaction and safeguarding both the user and the organization from potential cyber threats. This comprehensive approach ensures that collaboration remains secure in an increasingly interconnected digital landscape.
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    Sublime Reviews

    Sublime

    Sublime Security

    Sublime transforms the conventional black box email gateways by integrating detection-as-code with community-driven efforts to enhance security. Its binary explosion feature methodically inspects files sent as attachments or those automatically downloaded through links, identifying threats like HTML smuggling, dubious macros, and various malicious payloads. Additionally, Natural Language Understanding assesses the tone and intent of messages while utilizing the sender’s previous interactions to uncover attacks that do not rely on payloads. The Link Analysis tool employs a headless browser to render web pages and utilizes Computer Vision to scrutinize content for counterfeit brand logos, login pages, captchas, and other potentially harmful elements. Moreover, the sender analysis employs organizational context to uncover impersonation attempts targeting high-value users, thereby adding an extra layer of protection. Furthermore, Optical-Character-Recognition (OCR) efficiently extracts important entities from attachments, such as callback phone numbers, which can be crucial in identifying phishing attempts.
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    Cloudflare Email Security Reviews
    Effortlessly identify and neutralize phishing risks, including malware delivered through email, business email compromises, and multi-channel (link-driven) assaults. Safeguard against focused phishing attempts that leverage both email and various applications to exploit users and unlawfully gain access. Enjoy top-tier threat detection without the need for constant adjustments to policies and settings, allowing you to save time, money, and maintain peace of mind while capturing phishing threats that others might overlook. Initiate a complimentary phishing retro scan to uncover active threats lurking in your inboxes. Additionally, you can request a free phishing risk assessment to evaluate the effectiveness of your current security measures. Ensure ongoing defense against both established and new phishing strategies, including those crafted to bypass conventional security protocols. Protect your employees from link-based threats that can target users across multiple platforms, such as QR-code and deferred attacks, thereby enhancing overall organizational security. By implementing these protective measures, you not only fortify your defenses but also cultivate a security-conscious culture within your organization.
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