List of the Top Email Security Software for Microsoft 365 in 2026 - Page 2

Safeguard your organization against unintentional data leaks with VIPRE SafeSend, an effective and proactive tool tailored for Microsoft Outlook. SafeSend prompts users to verify external recipients and attachments prior to sending emails, which greatly minimizes the chances of sending misaddressed messages and incurring expensive errors. Unlike conventional Data Loss Prevention (DLP) systems that only intervene after emails have been dispatched—placing additional pressure on already stretched security teams to assess and approve them—SafeSend operates in real-time, allowing employees to spot and rectify potential mistakes beforehand. Furthermore, SafeSend meticulously scans outgoing emails and attachments to ensure sensitive information remains securely within your organization's network, delivering an added layer of security. As time progresses, employees will organically cultivate improved email practices, promoting a workforce that is more attuned to security concerns. SafeSend is offered in two distinct packages: one aimed at preventing misaddressed emails and another catering to broader DLP requirements. With VIPRE SafeSend, your organization not only minimizes the risk of data leaks but also cultivates a culture of vigilance and responsibility among its members, ultimately enhancing overall data security.

Keepnet's comprehensive platform for managing human risk enables organizations to cultivate a culture of security through AI-enhanced simulations, personalized training, and automated responses to phishing attempts. This proactive approach significantly mitigates risks stemming from employees, insider threats, and social engineering tactics within the organization and beyond. By utilizing AI-driven phishing simulations across various channels such as email, SMS, voice, QR codes, MFA, and callback phishing, Keepnet perpetually evaluates human behaviors to minimize cybersecurity vulnerabilities. Furthermore, Keepnet's adaptive learning paths are customized for each employee, taking into account their risk profile, job role, and cognitive tendencies, thereby fostering secure practices over time. Employees are also empowered to promptly report any threats they encounter, while security administrators can react 168 times faster thanks to the platform's AI analysis and automated response capabilities. Additionally, Keepnet identifies employees who frequently engage with phishing links, mishandle sensitive information, or overlook security protocols, ensuring that organizations remain vigilant against potential breaches. This continuous cycle of assessment and adaptation is crucial for maintaining a robust defense against evolving cyber threats.

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

To safeguard enterprises against phishing, malware, and account takeovers, advanced email security solutions are essential, as standard protections often fail to identify malicious emails. Since its inception in 2015, Avanan has transformed the landscape of email security, effectively addressing the limitations of traditional gateways that have struggled to adapt to the demands of cloud computing. With patented technology, Avanan offers comprehensive security for all collaboration applications and protects against threats such as ransomware, account hijacking, business email compromise, and supply chain assaults. Their innovative approach has resulted in a remarkable 99.2% reduction in phishing attacks that make it to users’ inboxes. Powered by True AI, which has been honed on vast datasets, Avanan is adept at thwarting even the most sophisticated phishing attempts before they can cause harm. By leveraging API integrations, machine learning, and AI, Avanan enhances cloud email security effectively. The company boasts a client base of over 5,000, with 60% being large enterprises, and has earned recognition as a leading Email Security Solution according to Gartner Peer Insights and G2. Furthermore, organizations that prioritize security must remain vigilant in fending off evolving threats in today's digital landscape.

MailList King offers an efficient mailing list server solution directly on your personal computer, allowing users to easily create, manage, and interact with audiences interested in their website, products, or organization. This software effortlessly works with popular email platforms such as Outlook and Gmail, or it can interface directly with your mail servers to handle mailing list tasks, including managing subscriptions, unsubscriptions, and bounced messages, while also sending out processing confirmations and double opt-in verifications, along with the personalized rich text content you create. For those currently using Excel or Outlook Contacts for mailing lists, MailList King can greatly simplify your workflow by automatically handling the addition and removal of contacts, freeing you to concentrate on producing engaging newsletters and effective sales messages. You don't need advanced technical skills to make use of MailList King, which makes it a practical option for anyone aiming to improve their email marketing strategies. Furthermore, its intuitive interface guarantees that even individuals with limited tech experience can take advantage of its robust functionalities, making it an ideal investment for enhancing communication efforts. With MailList King, managing your mailing lists becomes not only easier but also more effective in reaching your target audience.

M365 Manager Plus serves as an all-inclusive tool for managing Microsoft 365, allowing users to report, oversee, monitor, audit, and set alerts for essential activities. It streamlines the management of services like Exchange Online, OneDrive for Business, and Skype for Business from a single interface. This software provides a vast array of pre-configured reports tailored for Microsoft 365, facilitating intricate tasks such as bulk user and mailbox management, secure delegation, and mail handling. With 24/7 monitoring capabilities, it ensures users are promptly informed via email notifications regarding any service disruptions. Additionally, M365 Manager Plus enhances compliance management through its built-in compliance reports. Furthermore, it boasts advanced features for auditing, alerting, and reporting, which are crucial for maintaining the security of your Microsoft 365 environment, ultimately making it an indispensable resource for administrators.

Echoworx stands out as a fully-managed SaaS email encryption solution by providing eight distinct methods for sending secure emails, accommodating nine different authentication methods, and offering support in up to 28 languages, which allows for safe communication across various devices and locations. Among its key attributes are multiple secure mail delivery options, including Web Portal, S/MIME, PGP, Secure PDF, Certificate Encryption, Secure Attachments (such as PDF, Office, and ZIP), as well as TLS with fallback. Additionally, it features a wide array of authentication methods like Full OAuth Access, Self-Registration, SMS, Shared Secret Passphrase, SSO, System-Generated Verification Codes, Passwordless options, and Multi-Factor Authentication (MFA) for enhanced security. Users can also benefit from a complimentary full proof of concept trial (POC) and 24/7 access to expert support, ensuring that assistance is always available when needed. The platform allows for seamless end-to-end deployment and includes options for recalling and tracking secure emails. With extensive branding capabilities and self-service account management, Echoworx is committed to providing a comprehensive and user-friendly email encryption experience. Ultimately, this combination of features empowers organizations to enhance their communication security effortlessly.

Libraesva Email Security serves as a robust defense for your organization against both longstanding and new email threats, guaranteeing that only authentic communications are delivered. It provides superior email protection by integrating cloud email solutions with a secure email gateway, further augmented by Libraesva's unique Adaptive Trust Engine. This innovative engine leverages artificial intelligence to analyze typical behavioral trends within organizations and their members, continually assessing the reliability of business communications and proactively identifying any suspicious activities. In addition, Libraesva Email Security thoroughly inspects all incoming and outgoing messages, effectively detecting and neutralizing advanced malware, phishing schemes, business email compromises, spam, and a variety of other potential hazards. Its exclusive sandboxing technology neutralizes dangerous payloads and active content found in attachments, while its proactive URL analysis examines every link, ensuring users are protected from visiting malicious websites. This comprehensive approach not only safeguards your organization’s communications but also enhances overall cybersecurity resilience.

BooleBox is a comprehensive content security solution focused on preserving the integrity and confidentiality of client data against unauthorized intrusions, employing advanced encryption techniques to protect sensitive information from potential breaches. Users can seamlessly create, edit, share, and organize files and folders with a suite of customizable security features that do not compromise user-friendliness. BooleBox ensures data protection across diverse environments, including workplaces, cloud storage, email communications, collaborative projects, and widely used platforms such as Windows, Outlook, Gmail, OneDrive, and SharePoint. Acknowledging the digital threats present today, we offer unmatched safeguarding measures, acting as a reliable protector for your data wherever it goes. Our dedication to securing substantial amounts of data spans various sectors, and since 2011, we have consistently evolved to address new security challenges. Ultimately, our goal is to instill confidence in users, assuring them that their information remains secure regardless of its location. This commitment to security not only enhances user experience but also fosters trust in our innovative solutions.

RevBits Email Security is an advanced solution designed to fill significant voids in the email security landscape. Utilizing innovative algorithms, including a cutting-edge page impersonation detection technique, it ensures an unparalleled level of email scrutiny. Each email is assigned a composite probabilistic score, providing valuable insights and fostering ongoing user education. Furthermore, this robust security tool enhances the overall email security framework by identifying and thwarting sophisticated malicious emails that may bypass existing protections. Ultimately, RevBits Email Security safeguards employee endpoints, which represent the final line of defense in email interactions. This proactive approach not only defends against threats but also empowers users with essential knowledge for better security practices.

Protect your organization from phishing attacks and business email compromise (BEC) by implementing cutting-edge DMARC technology. Since its founding in 2015, Valimail has led the charge in identity-focused anti-phishing measures, helping to create a trustworthy framework for digital communications globally. Their all-encompassing, cloud-based platform is dedicated to validating and verifying sender identities, effectively preventing phishing efforts while bolstering brand reputation and ensuring adherence to regulations. By cultivating trust within your email communications, you can tackle phishing threats right at their origin. This solution not only safeguards your brand but also enhances email deliverability and allows for the integration of modern email standards like BIMI, AMP, and Schema.org. Key features include the automatic recognition of outbound sending services and access to a vast database of known sending services. Additionally, it offers detailed insights into the authentication status (SPF, DKIM, and DMARC) for all sending domains and services, with simplified DKIM key detection and configuration, all of which contribute to a formidable defense against email fraud. In an increasingly digital landscape, ensuring the security of your communication channels is paramount for business success.

More than 90% of targeted cyber attacks begin with spear phishing emails, underscoring the urgent requirement for enhanced mail server security. Unfortunately, many current security measures, such as the basic protections found in Microsoft® Exchange™ 2013 and 2016, rely on outdated pattern file updates that mainly detect traditional malware. These approaches often fall short in their ability to identify malicious URLs or document exploits, which are common in sophisticated attacks and advanced persistent threats (APTs). On the other hand, ScanMail™ Suite for Microsoft® Exchange™ takes a proactive stance against highly targeted email threats and spear phishing by utilizing advanced document exploit detection, a superior web reputation system, and sandboxing, all integral to a customized APT defense strategy that competitors do not offer. Additionally, ScanMail stands out by providing the capability to block conventional malware through its advanced email, file, and web reputation technologies, coupled with global threat intelligence gathered from the Trend Micro™ Smart Protection Network™ cloud-based security, thereby delivering extensive protection for your mail server. In this landscape of ever-evolving cyber threats, selecting the appropriate security solution becomes imperative for the safety of your organization, ensuring that it can withstand both current and future challenges effectively.

Material is a dedicated security platform for Google Workspace and Microsoft 365—the critical infrastructure modern organizations run on. Stop attacks, protect sensitive data, and strengthen your security posture with one solution built for modern Security and IT teams. Material streamlines SecOps by unifying detections and automating remediations across your cloud workspace in one platform that gives you unprecedented visibility and control. Material stops sophisticated attacks, secures sensitive data in files and mailboxes, detects and contains account takeovers, and reduces risk across your environment. Your cloud workspace isn’t just another app. It's critical infrastructure - home to your people, content, and communications — and requires dedicated protection. Point solutions and home-grown detections create gaps and drain efficiency. Material replaces the patchwork with one detection and response platform that stitches context together across threats, data, identity, and configuration—so you can get more done with fewer resources.

While you may think you are being cautious by refraining from sending sensitive emails, isn't it worrisome that your email service provider might have a backdoor allowing them to access your communications? They hold the power to share your messages with third parties whenever they choose, as they establish the protocols and take advantage of any weaknesses in their system. Have you reflected on the information that a single online purchase receipt could expose about your life? Such details could unveil your shopping habits, financial standing, preferred payment methods, home address, and the technology you use, among other insights. This reality is rather alarming, isn't it? Sadly, many businesses and scammers are already taking advantage of this data. Every tiny detail about you is invaluable to outside entities, who will leverage it to gain insights into your habits, sway your buying choices, and in some extreme cases, even impersonate you online. If you are under the impression that your email service is entirely secure, it may be beneficial to perform a quick online search; you'll likely uncover that leading email providers have experienced significant security breaches. Are you still feeling secure about your privacy? Fortunately, a simple and effective privacy solution is available that can protect your emails regardless of where they are sent or received, ultimately providing you with the reassurance you need in today's digital landscape. This peace of mind can help to alleviate the anxiety that comes with sharing your personal information online.

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.

mxHERO offers an advanced solution designed to secure email attachments by integrating email systems with cloud storage options. By replacing conventional email attachments with secure cloud storage links, mxHERO protects sensitive documents from being insecurely sent or stored outside the organization, which is a common risk in standard email practices. The dangers inherent in email communication can threaten sensitive data both within the organization and externally. mxHERO ensures that all email content is managed through the preferred content platforms of clients, which enhances overall security. This innovative service not only automatically moves attachments to secure cloud storage but also effectively resolves challenges related to content sprawl, version control, and file size restrictions. Moreover, it reduces the risk of data breaches, whether the information is in transit or being stored. Prominent global brands and major enterprises trust mxHERO for this essential security improvement. Although email poses considerable security risks, it is still a crucial component of business operations. mxHERO enables clients to enhance the security of their current email systems without disrupting the workflow of employees or clients, thus facilitating a smoother shift to a more secure email environment. Furthermore, this solution empowers organizations to manage their sensitive information with greater confidence and control.

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.

Streamline your workflow by utilizing a centralized dashboard that consolidates traffic visibility for all clients, eliminating the need for multiple logins. This solution facilitates rapid advanced searches, thereby improving your capacity to manage support tickets with greater efficiency. With just a couple of clicks, you can promptly eliminate threats and block malicious senders across your entire client base. Instead of handling each customer on a case-by-case basis, you can implement universal rules for all or chosen clients in seconds. Our platform equips you to detect and neutralize various email security threats, such as business email compromise, spear-phishing, and ransomware, all while being intuitive and ready for immediate use. Furthermore, Mesh guarantees the smooth synchronization of your mailboxes and licensing information from Microsoft 365, ensuring that the Mesh billing number aligns with Microsoft's billing number each month. While changing email security providers can be daunting, especially for larger Managed Service Providers, our concierge service simplifies the transition by taking care of most setup tasks for you. This streamlined assistance not only conserves valuable time but also boosts your operational efficiency, allowing you to concentrate on the core aspects of your business. Ultimately, adopting this comprehensive solution can transform your client management experience, making it more cohesive and less time-consuming.

MailArmor provides comprehensive email security specifically designed for businesses, leveraging cutting-edge AI technology and allowing for quick integration with Microsoft 365 in a mere five minutes. Furthermore, it guarantees adherence to CERT-In and DPDP regulations while maintaining affordable pricing for small and medium enterprises. With its unique features and capabilities, MailArmor positions itself as a leading solution for organizations seeking to improve their email security measures. Its commitment to both innovation and compliance makes it a valuable asset for safeguarding sensitive communications.

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.

Advanced Email Security Solutions. Our platform integrates a robust layer of human security that employs sophisticated encryption, analytics technologies, and contextual machine learning to thwart data breaches initiated by users, safeguard sensitive information (Egress Guard), and pinpoint vulnerabilities within your email infrastructure. In order to empower employees to make informed security choices, we leverage cutting-edge DLP technology alongside contextual machine learning capabilities. This approach effectively identifies and mitigates both accidental and deliberate data leaks, while ensuring that sensitive information is only shared with the appropriate recipients. Our user-friendly plug-in simplifies the process of email encryption, making it accessible for all users. Furthermore, we automate protection measures in alignment with your established security policies. Our intelligent system evaluates the actual threat level of potential breaches by managing data sharing, ensuring that optimal security and control are consistently maintained. Additionally, our eDiscovery software streamlines analytics and reporting processes across your email network, saving valuable time and resources. With our comprehensive solutions, organizations can enhance their email security while fostering a culture of awareness among employees.

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.

Darktrace revolutionizes cybersecurity with its ActiveAI Security Platform, leveraging self-learning AI to provide proactive defense and real-time threat detection across an organization’s entire infrastructure. The platform ingests and analyzes data from a variety of sources, including internal native systems, third-party security tools, and cloud applications, offering unparalleled visibility into security posture and attack paths. Darktrace’s AI continuously correlates incidents, enabling the system to detect threats that are previously unseen, including zero-day threats. Through automation, Darktrace not only investigates alerts but also provides autonomous responses, helping security teams prioritize critical threats and take immediate action. The platform also aids in exposure management, phishing simulations, and red and blue team exercises, offering a comprehensive suite of tools to address vulnerabilities before they can be exploited. By reducing manual intervention, Darktrace enables faster triage, decreases containment times, and enhances efficiency across security operations. Its ability to protect diverse environments, including IT, OT, endpoints, and identity systems, makes it a complete cybersecurity solution for modern enterprises.

Utilize Trusted Email Identity to protect both employees and customers from sophisticated threats posed by email attacks. These advanced tactics take advantage of critical security vulnerabilities that standard email protection systems often overlook. Agari builds trust among employees, customers, and partners by maintaining the integrity of their inboxes. Its unique AI technology, which receives over 300 million updates each day, proficiently differentiates between genuine communications and malicious ones. Furthermore, global intelligence extracted from trillions of email exchanges provides valuable insights into user behavior and connections. With extensive experience in setting email security standards, Agari has established a benchmark that Global 2000 companies rely on, ensuring they are well-defended against emerging threats. This thorough strategy not only strengthens security measures but also cultivates confidence in all email communications. As a result, organizations can focus on their core operations while knowing their email systems are in safe hands.

Abnormal AI is a cutting-edge cybersecurity platform that uses behavioral AI to shield organizations from increasingly sophisticated email-based threats, including phishing, social engineering, and account takeovers. By analyzing human behavioral patterns and identifying anomalies, Abnormal AI detects AI-generated attacks that move at machine speed and frequently evade standard security measures. The platform’s fully autonomous AI-driven agents quickly neutralize threats without human intervention, allowing security teams to focus on higher-priority tasks. Seamlessly integrating with popular cloud email platforms such as Microsoft 365, Abnormal AI provides a multi-layered defense that reduces operational overhead while enhancing protection. Trusted by over 3,000 customers worldwide, including a significant portion of Fortune 500 companies, the platform delivers a 90% reduction in phishing attacks and cuts security operations center (SOC) staffing needs by half. Users appreciate the platform’s rapid deployment, often identifying threats within days, and its continuous improvements based on customer feedback. The solution also automates routine SOC workflows, improving efficiency and response times. Abnormal AI’s unique, human-focused behavioral approach addresses the root cause of email threats by protecting humans rather than just blocking attacks. Industry leaders from diverse sectors report substantial decreases in impersonation attempts and increased confidence in their email security posture. By proactively combating AI-powered threats, Abnormal AI helps organizations safeguard their finances, reputation, and operational continuity in an evolving threat landscape.