Best Secure Email Gateway Software
View:
Compare the Top Secure Email Gateway Software as of October 2025
Sort By:
What is Secure Email Gateway Software?
Secure email gateway software provides a security platform that identifies and prevents web-based threats through the use of filters and labeling. Compare and read user reviews of the best Secure Email Gateway software currently available using the table below. This list is updated regularly.
-
1
NeoCertified Secure Email
NeoCertified
NeoCertified protects sensitive information through our secure email application across our versatile Cloud-based platform on any web browser, through Microsoft Office 365/Outlook plug-ins, and Gmail integration. iPhone + Android mobile apps are also available directly on your mobile devices. We have provided federally compliant, secure email solutions since 2002, and have helped businesses send and receive secure emails on any web browser or mobile device. NeoCertified also works across all email providers to give businesses the flexibility and assured protection they desire and deserve.Starting Price: $99.00/year/user -
2
N-able Mail Assure
N-able
N-able Mail Assure cloud-based email security solution provides advanced threat protection for inbound and outbound email using collective threat intelligence, 24/7 email continuity, and long-term email archiving. The service includes a multitenant web-interface with predefined settings, reporting, and views designed to ensure control and visibility over email flows. N-able Mail Assure’s proprietary technology incorporates input from processing large volumes of email data that feeds the Intelligent Protection and Filtering Engine. This combined with real-time pattern threat recognition leveraging a variety of filtering technologies help protect against spam, viruses, phishing attacks, impersonation, spoofing, malware, and other email-borne threats. -
3
Mimecast Advanced Email Security
Mimecast
Mimecast Advanced Email Security is a robust solution designed to protect organizations from a wide range of email-based threats, including phishing, malware, impersonation attacks, and spam. Leveraging cutting-edge AI and machine learning, Mimecast provides real-time threat detection and prevention to safeguard sensitive information and ensure business continuity. It offers advanced filtering and scanning of incoming and outgoing emails, reducing the risk of data breaches, and helps organizations comply with regulatory requirements. With comprehensive reporting and management tools, Mimecast enables IT teams to efficiently monitor and respond to potential threats, making it a trusted choice for businesses seeking enhanced email security. -
4
SecurityGateway™ for Email Servers
MDaemon Technologies
Developed by MDaemon Technologies, an email industry pioneer, Security Gateway's email threat detection technology has been protecting email servers from viruses, spam, phishing, data loss and other threats for over 20 years. Simply put, companies trust our expertise to help keep email communications safe. We protect all email platforms including Microsoft Exchange, Office 365 and others. Let our team of email security experts take the headache out of managing your company's email security needs. Security Gateway uses the latest email threat detection technology and policy enforcement tools to keep good emails flowing to and from your users. The Security Gateway cloud service can be deployed quickly and easily, allowing you to focus on other important tasks. Watch a short video to learn about some of the Security Gateway features.Starting Price: $1 per user per month -
5
Fortinet
Fortinet
Fortinet is a global leader in cybersecurity solutions, known for its comprehensive and integrated approach to safeguarding digital networks, devices, and applications. Founded in 2000, Fortinet provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. At the core of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly integrates security tools to deliver visibility, automation, and real-time threat intelligence across the entire network. Trusted by businesses, governments, and service providers worldwide, Fortinet emphasizes innovation, scalability, and performance, ensuring robust defense against evolving cyber threats while supporting digital transformation and business continuity. -
6
SEPPmail
SEPPmail AG
Sending and receiving digitally signed and encrypted emails is easier and more convenient than ever before. Thanks to the Secure E-Mail Gateway from SEPPmail with integrated and patented GINA procedure for spontaneous encryption, SMEs and large companies secure their entire e-mail communication at the highest level, with the least effort and simplest handling for sender and recipient. With its comprehensive Secure Email solution, SEPPmail is setting new standards for secure, GDPR-compliant email communication. As one of the world’s leading email encryption and signature solutions, SEPPmail includes all the features to protect the sending of confidential data via email, guarantee the authenticity of the sender and ensure the confidentiality and integrity of the message. Thanks to its modularity, the secure e-mail gateway solution can be configured according to customer-specific requirements and expanded seamlessly.Starting Price: 4.5 € per user per month -
7
Spambrella
Spambrella
Dynamically classify imposter email. Preemptively identify and sandbox suspicious URLs. Leverage big-data analysis to accurately classify bulk mail. All within a single service that connects with Microsoft 365 and Google Workspace. Spambrella’s Email Security and User Awareness Training technology is used by some of the World’s largest and most successful security-conscious companies in a multitude of continents and environments. Delivered on a global scale, Spambrella is ready to unify your email security and user awareness training requirements. Think of us as your outsourced email security team! We have deep technical expertise of all other service providers such as MxLogic, Mimecast, Symantec.cloud and know how to migrate you effortlessly. Schedule a demo today with our cybersecurity experts to uncover email threats targeting your email users.Starting Price: $1.00 -
8
LuxSci
Lux Scientiae
LuxSci provides HIPAA-compliant web and email communications services. LuxSci creates uniquely secure and customizable enterprise-grade environments and solutions that enable organizations to confidently meet their specific business and security needs at scale. LuxSci’s HIPAA-compliant email and web solutions are HITRUST certified and include: • Secure High Volume Sending for delivering massive volumes of transactional and marketing emails. • Secure SMTP Connector for encrypting outbound emails sent from Microsoft 365 and Google Workspace. • Secure Email Marketing platform for creating and sending marketing campaigns with ePHI. • Secure Email Hosting for reliable and secure day-to-day business email. • Fully managed Secure Web and Database Hosting for web applications that require compliance. • Secure Forms to safely collect and store sensitive information. LuxSci provides a full suite of secure technology for companies requiring compliant web and email services.Starting Price: $4 per/user/month -
9
PhishProtection
DuoCircle
Make your smartest investment to reduce email security threats today, and get a comprehensive email security protection solution with small business pricing. Cybercriminals are targeting CEOs, CFOs, HR, Accounting Departments and regular employees across every industry. As you know Office 365 is extremely limited in the protection that you can configure to stop impersonations, email fraud and phishing. There are only so many custom transport rules you can build to constantly block domains or protect against employee impersonations. PhishProtection works on every email server, device or smtp service. No matter if you are on your phone, or outlook or any email client anywhere, we can protect you. It offers best-in-class security to iOS and Android devices alike.Starting Price: $100/month/user -
10
Additional layer of security to stop threats from ever reaching users in the network. Designed to protect email communication, the most vulnerable vector. ESET features a true 64-bit product that allows for clustering to ensure that speed is never a concern for organizations of any size. ESET Mail Security solutions use in-house developed anti-spam, anti-phishing and host server protection, combining machine learning, big data and human expertise into one award-winning mail security platform. Helps eliminate unsolicited emails and targeted attacks, allowing employees to focus on their job and ensure business continuity. Users are constantly targeted via phishing campaigns that may contain other malicious components. A single user will not be efficient due to having to sift through whether emails are legitimate or not. Emails are automatically provided to users about their spam emails that were quarantined.Starting Price: $132 per 5 devices per year
-
11
VIPole
VIPole
Message editing and deleting, auto-delete messages, chat window clearing and complete history wiping. Disconnecting devices remotely, fake secret phrase, auto lock and auto logout on inactivity. Hidden and blacklist contacts, individual visibility settings for contacts, configurable contact authorization. Assign tasks to yourself and colleagues, track the progress. Store and organize passwords, securely share them with contacts. Foster collaboration by setting goals for the team and monitoring the solved issues.Starting Price: $5.99 per month -
12
RMail
RPost
RMail® is the e-security platform by RPost®, a global leader since 2000. RMail specializes in elegantly easy to use email encryption for privacy and compliance, e-signatures, legal e-delivery proof, secure file sharing, email impostor protection, document rights management, and AI-infused services to prevent data leaks and human e-security errors. RMail’s transmission e-security services are most often used by businesspeople or business systems that send important, sensitive, or consumer-regulated information. These RMail services are generally applied to those messages where the sender needs functionality beyond standard email in terms of (a) easier to use and more automated email encryption for privacy compliance, (b) returning a verifiable proof record of who said what to whom by email, (c) assurance and peace of mind related to delivery and open status of important and time-deadline email, (d) need a timestamped proof of content delivered, (f) need to share large files securely.Starting Price: $7/month/user -
13
SendSafely
SendSafely
The end-to-end encryption platform for modern business. SendSafely lets you easily exchange encrypted files and information with anyone on any device. Let us take the headache out of secure file exchange. Trusted by leading brands that understand the importance of keeping customer information safe. SendSafely works natively with all major browsers. No software to install, no encryption keys to manage. Use SendSafely for compliance with regulations like HIPAA (BAA available), GDPR, CCPA and more. Use one of our pre-built platform connectors or easily create your own integration with our developer API. Features designed for businesses such as user administration, single sign on and custom branding. SendSafely integrates with many popular third party systems, adding end-to-end encryption to the platforms your users already know and love. Extend the capabilities of your existing apps and infrastructure by seamlessly adding encryption to your existing workflows.Starting Price: $11.50/user/month -
14
Ciphermail Appliance
in-put
Email encryption with CipherMail Most emails are sent in plain text. This means that anyone who has access to the data stream can read the content of the emails. This is unacceptable for most companies, institutions and organizations and may also violate applicable law. E-mail encryption ensures security and trust in communication. CipherMail is a central mail transfer agent (MTA) that works on the “store and forward” principle. Incoming e-mails, regardless of whether they are from internal or external sources, are only saved until they have been encrypted / decrypted and can be forwarded to the recipient. This happens without changing the email client and is possible in combination with any SMTP server! E-mail encryption can be done using S / MIME, PGP or in a PDF file - in principle or triggered by a trigger in the subject line. CipherMail also includes a Data Leak Prevention (DLP) module.Starting Price: $670 one-time payment -
15
RevBits Email Security
RevBits
RevBits Email Security is a next-generation email security solution that aims to close major gaps in the current marketplace. Leveraging sophisticated and unique algorithms such as a patented page impersonation detection methodology, Revbits Email Security achieves the deepest level of email analysis. For every email, RevBits Email Security displays a composite, probabilistic score of each email's risk level paired with full details for continuing user education. RevBits Email Security enhances Email Security Architecture RevBits Email Security enhances email security by detecting and blocking sophisticated malicious emails that get past the outer layers of an organization's email security stack. With RevBits Email Security, organizations can protect the last point of email interaction – the employee endpoint. -
16
Z1 SecureMail Gateway
Zertificon
25% of the 100 German companies with the highest turnover choose Zertificon. Z1 SecureMail Gateway is our highly automated Enterprise Email Encryption solution for effortless, secure communications with anyone, anywhere. Your entire organization encrypts and decrypts, just as well manages & verifies email signatures smoothly in the background. Z1 SecureMail Gateway requires minimal maintenance. And the browser-based admin interface needs no special skills. Keys are managed automatically & central policies enforce security. Integration is fast into your Cloud or On-premises email infrastructure. Your workflows and business are uninterrupted — no employee training needed plus frictionless experience for recipients. With Z1 SecureMail Gateway, encryption is centrally configurable and proofed against human error. You easily achieve and maintain compliance and the highest security standards. You also own all encryption keys and attain German-engineered data sovereignty with no backdoors.Starting Price: from $ 1.50 per user/per month -
17
ClrStream
Mithi Software Technologies
29% of businesses that face a data breach end up losing revenue. And email is the #1 target of attack. Secure your email systems with ClrStream. A security and continuity solution for MS Exchange, Office 365, MDaemon, Postfix, Postmaster, Zimbra & other mail solutions. 88% of businesses experience data loss and email is the main culprit. An email scrubbing solution with guaranteed protection from Malware, Ransomware, Virus and Spam. Low latencies for mail delivery and a low rate of false positives. A peripheral, out-of-environment solution to mitigate DDOS attacks. A solution that can provide email Continuity when the primary mail server is unavailable or down. A solution offering with built-in redundancies and scale eliminating the need for a mail parking service. A cloud-based SaaS solution that helps de-congest bandwidth and eliminates management headaches. -
18
Votiro
Votiro
The only file security solution that ensures all files coming into your enterprise are completely safe. Unlike detection-based file security solutions that scan for suspicious elements and block files, Positive Selection singles out only the safe elements of each file, ensuring every file that enters your organization is 100% safe. Any file, anywhere, anytime. With a deep, expert understanding of all types of files, Votiro’s Secure File Gateway eliminates threats from the widest possible range of files, no matter how they enter your organization. -
19
ePrism Email Security
EdgeWave
ePrism is a comprehensive email security gateway that provides unrivaled email defense against internal and external threats such as spam, viruses, spyware, phishing schemes, identity theft, and other dangerous or offensive content. Our services include industry leading inbound/outbound spam and antivirus filtering, category based policy and automated seamless directory integration in a hosted SaaS solution that can be provisioned immediately, without having to install any hardware or software. EdgeWave technical experts provide proactive monitoring and management designed to stop threats before they get near your internal servers. Key features include advanced threat protection, intelligent threat management, data loss prevention and compliance, disaster recovery, granular policy controls, account and domain management, complete visibility and reporting. -
20
Comodo Dragon Platform
Comodo
Our completely cloud-native framework delivers you zero day protection against undetectable threats while defending your endpoints from known threat signatures. Comodo introduced a new approach to endpoint protection, engineered to solve the issue of legacy security solutions. The Dragon platform delivers the foundation principles for complete next-generation endpoint protection. Easily improve your cybersecurity and performance with the Dragon Platform's lightweight agent delivering artificial intelligence (AI) and Auto Containment to stop all threats. Comodo delivers everything cybersecurity you ever needed to activate breach protection immediate value added from day one. 100% trusted verdict within 45 seconds on 92% of signatures via analysis, and 4 hours SLA on the remaining 8% via human experts. Automatic signature updates that simplifies deployment across your entire environment to lower operational costs. -
21
AppRiver
OpenText
Unleash your teams to become more productive, secure, and compliant in a complex, digital world. Enhance your productivity, increase your security, and strengthen your compliance with the power of Secure Cloud. Reduce risks caused by human error and security-related obstacles to productivity. Threat detection and risk mitigation are constant, automated, and dynamic. Best-in-class email encryption, secure file sharing, and business communications archiving (email, social media, instant messaging). All services backed by 24/7/365 dedicated support from our phenomenal care team to better manage people, technology, and process. Automatic email encryption and data loss prevention offer unparalleled peace of mind for you, your employees and your executives. Prevent malware, ransomware and other advanced threats from compromising your email and your business. -
22
SonicWall Email Security
SonicWall
Protect against today’s advanced email threats using a cloud email security service. Email is the most common threat vector used by cyber criminals. Deploy the cloud-based service that protects your organization from advanced email threats such as targeted phishing attacks, ransomware, business email compromise (BEC) and email fraud. SonicWall solution reduces administrative overhead through easy deployment, management and reporting. The massively expanding, distributed IT reality is creating an unprecedented explosion of exposure points for sophisticated cybercriminals and threat actors to exploit. SonicWall Email Security is ideal for organizations that need a dedicated on-premises solution. SonicWall’s solution can be deployed as a hardened physical appliance, robust virtual appliance or software application. The multi-layered solution provides comprehensive inbound and outbound protection, and defends against advanced email-borne threats such as ransomware. -
23
Trellix Email Security
Trellix
Keep your email infrastructure and users safe— whether on-premises or in the cloud. Identify and mitigate advanced email threats—including ransomware, business email compromise (BEC), and phishing—with Trellix Email Security. You’ll get leading detection and response capabilities to build a trusted, resilient email environment. Identify current threats quickly and accurately with prioritized alerts to help analysts take immediate action. Keep your email safe—whether it’s hosted on-premises or in the cloud—with leading sandbox technology, AI, and machine learning. Connect with as many as 650 Trellix solutions and third-party products to deliver insights and create a unified, living security ecosystem. Minimize the risk of breaches and identify, isolate, and protect against advanced URL and attachment-based attacks with this on-premises solution. Choose Advanced Threat mode to unearth malicious URLs with custom plug-ins, or Full Hygiene mode to reduce impersonation, BEC, and more. -
24
Clearswift Secure Email Gateway (SEG) provides uniquely powerful protection of an organization's email data against inbound cyber-attacks and outbound data loss prevention. As the number one method of communication for most organizations, email has become one of the top sources for cybercriminals to infiltrate your systems and take hold of your critical data. Our Secure Email Gateway protects against known and unknown malware but also advanced threats including phishing. IT teams need to ensure that information being shared across email both in and out of the organization is not only secure, but appropriate and compliant. Clearswift’s unparalleled level of inspection and granular policy controls apply the optimal security treatment to your emails in real time so your communications remain safe and flowing, and business disruptions are minimized.
- Previous
- You're on page 1
- Next