Best Email Security Software for Microsoft 365

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 respond to user risk in real time. 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.

NeoCertified secures sensitive information via our secure email app across our versatile Cloud-based platform. It works on any web browser through Microsoft Office 365/Outlook plug ins and Gmail integration. You can also download the iPhone + Android mobile apps directly to your mobile devices. Since 2002, we have been providing federally compliant, secure mail solutions. We have helped businesses send and get secure emails from any web browser or mobile device. NeoCertified works with all email providers, giving businesses the flexibility and guaranteed protection they need.

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!

odix, a market leader for Enterprise CDR (Content Disarm and Reconstruction), now offers FileWall, a native cybersecurity app for Microsoft Office 365 mailboxes. FileWall™, which is compatible with Microsoft security solutions like EOP and ATP, ensures complete protection against unknown attacks via email attachments. FileWall™, unlike other Microsoft security solutions, doesn't alter or harm any sender-related security capabilities.

N-able Mail Assure, a cloud-based email security system, provides advanced threat protection for both inbound and outbound emails using collective threat intelligence, long-term email archive, and 24/7 email continuity. The service offers multi-tenant web-interfaces with predefined settings, reporting and views that allow for control and visibility over all email flows. N-able Mail Assure's proprietary technology uses input from large volumes of email data to feed the Intelligent Protection and Filtering engine. This, combined with real-time pattern threat detection leveraging a variety if filtering technologies, helps protect against spam, viruses and phishing attacks as well as impersonation, malware and other email-borne threats.

PreVeil revolutionizes end-to-end encryption, offering robust protection for organizations' emails and files against threats like phishing, spoofing, and business email compromise. The platform is designed to be user-friendly for employees and straightforward for administrators. With PreVeil, enterprises gain access to a secure and intuitive encrypted email and cloud storage solution that safeguards critical communications and documents. Utilizing top-tier end-to-end encryption, PreVeil ensures that data remains secure throughout its lifecycle. Additionally, the platform features a “Trusted Community” that facilitates safe communication among employees, contractors, vendors, and other external parties. This innovative feature allows users to share sensitive information confidently, knowing they are protected from common cyber threats. Ultimately, PreVeil empowers organizations to maintain a high level of security while fostering a collaborative environment.

Hornetsecurity 365 Total Protection was specifically designed to protect the Microsoft 365 business environment. It provides comprehensive protection for all 365 cloud services, including Microsoft Office 365 and Microsoft Outlook 365 email. Hornetsecurity offers two packages that will meet the needs of your organization: 365 Total Protection Business - A complete security solution for Microsoft 365 customers 365 Total Protection Enterprise--adds advanced protection mechanisms and enhanced features. You'll be able to quickly onboard and use the solution intuitively. This will simplify your IT security management and ensure that your Microsoft 365 environment is protected at all times.

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 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. Post delivery remediation (PDR) allows you to remove all of these phishing emails from your users inbox removing risk instantly. The removed email goes to the junk folder. Our curated and unique email threat intelligence data is unmatched in its simplicity, visibility, coverage and accuracy. 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!

Enhanced measures to protect your email accounts are essential, as email remains the primary vector for threats. It is crucial to broaden your security measures to identify hazardous threats and swiftly respond to and mitigate new dangers as they arise. Recognizing the malicious tactics employed in assaults on your organization is vital. By understanding the unique risks to your business and classifying the threats, you can better comprehend which aspects of your organization are most susceptible to attacks. Utilizing AI-based threat detection, various detection systems concurrently analyze different components of incoming emails. The insights gained from these evaluations ensure precise threat identification, assess business risks, and facilitate suitable response strategies. Threats may originate from a variety of channels, including phishing schemes, business email compromise, malware, and ransomware. Protect yourself against all these threats with top-tier threat intelligence, which equips you to respond promptly to any potential risks. The continuous evolution of cyber threats makes it imperative to stay ahead of attackers by implementing comprehensive security solutions.

Security Gateway's email threat detection technology was developed by MDaemon Technologies. This email industry pioneer has been protecting email servers against viruses, spam, phishing and other threats for more than 20 years. Our expertise is trusted by companies to keep their email communications safe. We protect all email platforms, including Microsoft Exchange, Office 365, and other. Our team of email security specialists will take the hassle out of managing your company’s email security. Security Gateway employs the most up-to-date email threat detection technology and policy enforcement tools in order to ensure good emails flow to and from your users. Security Gateway cloud service is easy to deploy, so you can focus on other important tasks. Check out this video to see some of the Security Gateway features.

Thanks to the extensive capabilities of Advanced Threat Protection, even the most advanced cyber threats are rendered ineffective; tools such as freezing, URL scanning and rewriting, the Sandbox Engine, and Malicious Document Decryption work together to counter various attack techniques, ensuring robust defense against dangers like Ransomware, Targeted Attacks, Business Email Compromise, and a host of others. This multi-layered approach significantly enhances the security of your IT infrastructure, offering peace of mind in an increasingly perilous digital landscape.

Combat ransomware, spam, phishing, and various other cyber threats targeting small to medium-sized businesses, enterprises, healthcare organizations, as well as government agencies and contractors. With API-level integration available for platforms such as Microsoft Office 365 & GCC High, Google Workplace, and other email service providers, MailRoute effectively mitigates email-related attacks aimed at compromising your sensitive information and systems. Our solution offers economical, multi-layered defense mechanisms tailored to meet CMMC, NIST 800-171, HIPAA, DFARS compliance, and is accepted by DISA for email security. Designed with no single point of failure, our fully owned infrastructure features geo-distributed data centers equipped with redundant network connections, power supplies, and cooling systems, ensuring an impressive uptime of 99.999%. MailRoute also thwarts email forgeries and spoofing attempts by utilizing advanced email authentication techniques alongside managed DNS modifications. Through continuous management and updates of your email network security, we guard against cyber threats and minimize risks such as operational downtime, thus promoting both cost predictability and service reliability. Our commitment to maintaining robust email security measures demonstrates our dedication to safeguarding your digital assets against evolving cyber threats.

Discover the ultimate solution for identifying, tracking, and safeguarding sensitive information on a large scale. This comprehensive data security platform is designed to swiftly mitigate risks, identify unusual activities, and ensure compliance without hindering your operations. Combining a robust platform, a dedicated team, and a strategic plan, it equips you with a competitive edge. Through the integration of classification, access governance, and behavioral analytics, it effectively secures your data, neutralizes threats, and simplifies compliance processes. Our tried-and-true methodology draws from countless successful implementations to help you monitor, protect, and manage your data efficiently. A team of expert security professionals continuously develops sophisticated threat models, revises policies, and supports incident management, enabling you to concentrate on your key objectives while they handle the complexities of data security. This collaborative approach not only enhances your security posture but also fosters a culture of proactive risk management.

Ensure the security of Microsoft Office 365, Google G Suite, and on-premises email systems by utilizing the most comprehensive email security solution available in the industry. Shield users from threats like spear phishing, credential theft, and ransomware attacks through the implementation of Email Threat Isolation. Combat pervasive email hazards such as spear phishing, ransomware, business email compromise, and spam with robust protective measures. Foil spear phishing attempts through a multi-layered defense that includes threat isolation, spam filtration, advanced email security analytics, and integrated user training and awareness programs. Defend against the latest ransomware attacks with advanced content defense strategies, sandboxing techniques, and link protection technologies that are designed to identify emerging and stealthy threats, including zero-day vulnerabilities. Counter business email compromise by employing impersonation protection, enforcing sender authentication, and implementing brand protection strategies. Enhance your brand's reputation and mitigate risks by automating the enforcement of sender authentication protocols like DMARC, DKIM, and SPF through the use of Symantec Email Fraud Protection, which addresses the practical challenges of maintaining email security effectively. By investing in these comprehensive solutions, organizations can safeguard their communications while fostering a culture of security awareness among users.

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.

Dynamically classify fake email. Preventively identify suspicious URLs and sandbox them. Big-data analysis can be used to accurately classify bulk mail. All this in one service that connects to Google Workspace and Microsoft 365. Spambrella's Email Security & User Awareness Training technology is used in many of the world's most successful security-conscious businesses across many continents and environments. Spambrella can help you unify your email security requirements and user awareness training needs on a global level. Spambrella is your outsourced email security team. We are able to migrate you seamlessly and have the technical expertise of all other service providers, such as Symantec.cloud, Mimecast, MxLogic. To uncover email threats to your email users, schedule a demo with our cybersecurity experts today.

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.

Founded in 2012 by a primary author of the DMARC specification, dmarcian is dedicated to upgrading the entire world’s email by making DMARC accessible to all with superior tooling, educational resources, and knowledgeable support. Used by thousands and recommended by support teams around the globe, our DMARC Management Platform grants you visibility into and control over how your email domains are used. Our platform provides actionable insights and alerts for organizations of any size to deploy DMARC and its supporting technologies of SPF and DKIM, visualize email delivery data, and manage a secure domain services infrastructure. Rectify email security vulnerabilities, improve domain and brand reputation, and meet the growing demand of DMARC compliance requirements with our best-in-class offerings.

LuxSci's mission is to keep personal data safe while reliably protecting the world’s communications. LuxSci specializes in providing 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. Our services include Secure Email, Web, and Forms.

Make the smartest investment today to reduce email security threats. Get a comprehensive email security solution for small businesses at small business pricing. Cybercriminals are targeting CEOs and CFOs in every industry, as well as HR, Accounting, and HR departments. Office 365 has very limited protection options to prevent impersonations, email fraud, and phishing. You can only create so many custom transport rules to block domains and protect against employee impersonations. PhishProtection is compatible with every email server, device, and smtp service. We can protect you no matter where you are, whether you're on your phone, outlook, or any other email client. It provides the best security for both Android and iOS devices.

An extra layer of protection is implemented to prevent potential threats from reaching users within the network. This system is specifically designed to safeguard email communications, which are often the most susceptible to attacks. ESET boasts a genuine 64-bit product that supports clustering, guaranteeing that speed remains optimal for organizations of all sizes. ESET Mail Security solutions feature proprietary anti-spam, anti-phishing, and host server protection, integrating machine learning, extensive data analysis, and expert human knowledge into a single award-winning mail security platform. This functionality significantly reduces unsolicited emails and targeted threats, enabling employees to concentrate on their work while ensuring the continuity of business operations. Users frequently face phishing attempts that may include additional harmful elements, making it crucial for a streamlined approach to email security. Relying on an individual user to discern legitimate emails can be ineffective, as they would be overwhelmed with the task. To alleviate this burden, users automatically receive notifications regarding spam emails that have been quarantined, enhancing their ability to manage their inboxes effectively.

Office 365 Management is now easier than ever. Manage everything with AD Users & Computers. Eliminate Exchange on-premises. Easy365Manager integrates Office 365 and AD management, eliminating need to log in to web consoles or run PowerShell. Easy365Manager adds two new tabs for user properties to AD Users & Computers. You can now manage EXO mailboxes from AD user properties, including complex settings such as calendar delegation which would otherwise require PowerShell scripting. Easy365Manager allows your first-level admin to work faster and reduces the number of tickets escalated to senior administrators. Easy365Manager can be installed on any PC or server with AD Users & Computers. There is no server component or service, AD Extension, or custom security layer. Easy365Manager can be installed and configured in less than 2 minutes, and you will instantly be rid of hybrid Office 365 management.

Cloud-based applications like email, collaboration tools, and storage solutions require preventive measures for security. A robust array of defenses, including spam filtering, anti-malware scanning, anti-phishing techniques, and advanced threat protection, forms a crucial line of defense. Enhance your Microsoft 365 services—such as Exchange Online, OneDrive, Teams, and SharePoint Online—with an additional layer of sophisticated security. This setup is designed to eliminate unwanted emails, thwart targeted attacks, and mitigate ransomware threats, thereby allowing employees to concentrate on their core responsibilities and ensuring seamless business operations. Users will receive instant notifications through a dedicated console or alerts, ensuring they are always informed. Automatic protection is extended to new users as well, providing a comprehensive shield against malware, spam, and phishing threats with leading-edge zero-day defense capabilities and a user-friendly cloud management interface. With the integration of an advanced, award-winning engine that boasts enhanced performance, this vital tool effectively filters all spam, keeping user mailboxes free from unsolicited or unwanted messages while safeguarding sensitive information. Ultimately, this ensures that the organization operates securely and efficiently in a digital landscape filled with potential threats.

Raptor Email Security, an MX-based email security system, was designed by industry experts to prevent spam, phishing and malware attacks. It uses a unique scoring framework, multiple technologies, including ClamAV, MIMEDefang and Sendmail. Our spam experts will take care of the annoying spam! Zero Spam. Zero Tickets. 2X Resources. Your email will go through our servers. This ensures that your server is protected from the majority of cyber attacks. You can increase your hosting revenue by adding more hosting accounts and monetize your server with less resource consumption. Raptor Email Security comes with Raptor Review, which provides an expert analysis of your email configuration. It is a white glove service that provides a phishing hotline to help you fix any email problems, including blocking spam, improving deliveryability, identifying scams and finding missing emails. It takes only minutes to set up. Get a free trial for 30 days!

Mailock secure email provides businesses with the ability to share sensitive information with clients while safeguarding their data against potential breaches. By integrating industry-leading encryption technology and multi-factor identity verification, it ensures that confidential emails are shielded from cyber threats and that customer data remains secure. Users can easily craft a secure email from their desktop or browser, employing specific rules and keywords to trigger encryption. Additionally, they can establish authentication hurdles to confirm the identities of their recipients, ensuring that only authorized individuals can access the information. Comprehensive audit trails are maintained for each message, allowing users to monitor recipient engagement through instant read receipts. Recipients also have the option to encrypt their responses at no cost. This service not only facilitates secure communication but also empowers clients to interact safely with your business. Furthermore, it enables the efficient delivery of confidential documents to customers in large quantities through automated secure email processes. Ultimately, Mailock enhances the integrity and confidentiality of business communications, fostering trust and security in client interactions.