Best On-Premises Email Security Software of 2025

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

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.

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.

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

Kevlarr provides the most comprehensive DMARC monitoring & management solution for MSPs. Our platform is purpose-built and empowers MSPs. Our dashboard simplifies the process of setting up and maintaining a strict DMARC Policy. Our AI-driven filters eliminate all irrelevant data. Our AI filters can filter out data relating to spoof emails or spoof attacks. You only need to pay attention to the data that you, or your customer, actually control. This can save your specialists time. Our wizard guides you step-by-step through the DMARC management process. This solution is the result of our years of experience and knowledge in DMARC management. We zoom in on the domains that need your attention for each customer. We start with the most pressing issues. You can be sure you won't forget anything.

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.

It is now easier than ever to send and receive digitally signed encrypted emails. The Secure E-Mail Gateway (SEPPmail) with its patented GINA procedure for spontaneous encrypted, SMEs as well as large corporations can secure all e-mail communications at the highest level. It requires minimal effort and is easy to use for both sender and receiver. SEPPmail's comprehensive Secure Email solution sets new standards in secure, GDPR-compliant email communication. SEPPmail is a world-class email encryption and signature solution. It includes all the features necessary to protect confidential data via email, ensure authenticity of the sender, and ensure confidentiality and integrity of the message. The modular design of the secure email gateway solution allows it to be customized to meet customer needs and can be easily expanded.

DocsCorp is the choice of document management professionals looking for software that makes their jobs easier and more efficient. Our global brand has more than 500,000 users in 65 countries. Our product portfolio includes document creation, email recipient check, metadata cleaning and document comparison. You can also access our PDF creation and PDF conversion software on your desktop, server, or cloud. Our products are compatible with the most popular enterprise content management systems. This allows for business efficiency and streamlines processes. We offer organizations both on-premises integrations and cloud integrations. We work with industries that are document-centric in order to help them manage their most important asset - documents. This includes Government Departments and Legal Services, Financial Services, as well as Technology companies.

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

CB Exchange Server Sync allows for secure synchronization of data and data migration between Exchange Servers. It allows for easy synchronization between multiple Outlook accounts hosted on Exchange Server or Office 365. You can customize it to meet your business's needs. It can be used for synchronization of emails, calendars, tasks, contacts, public folders, and other information. This solution allows seamless migration of your entire Exchange / Outlook models to Office 365 or other Exchange versions starting with Exchange 2010 SP1 or later. It's great when combined with: * CB Super Secure Exchange Server is the solution to stop hackers from using Exchange Server to gain access to a secure network. * Outlook Content Censor - Access your Exchange account from outside the company without revealing sensitive information. You can restrict attachments, address and signatures.

Protect your organization from accidental data breaches with VIPRE SafeSend, a powerful and proactive solution for Microsoft Outlook. SafeSend prompts users to double-check external recipients and attachments before sending emails, significantly reducing the risk of misaddressed messages and costly mistakes. Unlike traditional Data Loss Prevention (DLP) tools that block emails after they’re sent—leaving understaffed security teams burdened with reviewing and releasing them—SafeSend works in real-time, empowering employees to identify and prevent potential errors before they happen. SafeSend also scans outgoing emails and attachments to ensure sensitive data stays securely within your network, offering an extra layer of protection. Over time, employees naturally develop better email habits, fostering a more security-conscious workforce. Available in two packages, SafeSend offers targeted solutions: one focused on preventing misaddressed emails and another designed to address comprehensive DLP use cases. With VIPRE SafeSend, your organization can reduce data leakage risks while building a culture of awareness and accountability.

As a cloud-based, full-managed SaaS email encryption provider, Echoworx alone offers 8 ways to send protected mail, with support for 9 authentication options and up-to 28 languages – ensuring secure communication anywhere, on any device. Key features: • Multiple ways to send secure mail ( Web Portal, S/MIME, PGP, Secure PDF, Certificate Encryption, Secure Attachment (PDF, Office, ZIP), TLS with fallback) • More authentication options (Full OAuth Access, Self-Registration, SMS, Shared Secret Passphrase, SSO, System-Generated Verification Codes, Passwordless, and Multi-Factor Authentication (MFA) • Free full proof of concept trial (POC) • 24/7 expert support • End-to-end deployment • Recall and tracking options for secure mail • Extensive branding • Self Service Account Management

Libraesva Email Security shields your organization from both established and emerging email threats, ensuring that only genuine messages reach you. It offers top-notch email protection through the fusion of cloud email and a secure email gateway, enhanced by Libraesva's distinctive Adaptive Trust Engine. This engine utilizes AI to comprehend typical behavioral patterns within organizations and among individuals, continuously evaluating the trustworthiness of business interactions and preemptively flagging unusual activity. Libraesva Email Security meticulously scans and sifts through all incoming and outgoing emails, identifying and thwarting advanced malware, phishing attempts, business email compromises, spam, and other risks. Its exclusive sandboxing technology disarms hazardous payloads and active content within attachments, while proactive URL analysis scrutinizes every link to shield users from accessing harmful websites.

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

Safeguard your email systems and users, regardless of whether they are on-premises or cloud-based. Utilize Trellix Email Security to detect and counter advanced email threats such as ransomware, business email compromise (BEC), and phishing. With top-tier detection and response capabilities, you can establish a trustworthy and resilient email environment. The system quickly identifies current threats with prioritized alerts, enabling analysts to respond promptly. Ensure your email remains secure—whether it's on-premises or cloud-hosted—by leveraging advanced sandbox technology, artificial intelligence, and machine learning. Additionally, integrate with up to 650 Trellix solutions and third-party products to provide valuable insights and foster a cohesive security ecosystem. Reduce the likelihood of breaches while identifying, isolating, and defending against sophisticated URL and attachment-based attacks using this on-premises solution. Opt for Advanced Threat mode to discover harmful URLs through custom plug-ins, or select Full Hygiene mode to mitigate impersonation attempts, BEC, and other risks. With these robust features, you can maintain a secure email environment tailored to your organization's needs.