# Best Secure Email Gateway Software - 2026 Reviews & Pricing > Find the best Secure Email Gateway Software for your organization. Compare top Secure Email Gateway Software systems with customer reviews, pricing, and free demos. Source: https://www.softwareadvice.com/secure-email-gateway --- [Home](https://www.softwareadvice.com/) / Secure Email Gateway Software Software Advice offers objective insights based on verified user reviews and independent product and market research. When our advisors match you to a software provider, we may earn a referral fee. # Best Secure Email Gateway Software of 2026 Updated June 14, 2026 Written by [Supriya Deka](https://www.softwareadvice.com/resources/author/sdeka/) Market Research Specialist Edited by [Rina Rai](https://www.softwareadvice.com/resources/author/rina-rai/) Senior Editor On this page 1. Popular Comparisons 2. Buyers Guide 3. Related Software Filter products 39 results ### Compare Products Showing 1 - 25 of 39 products #### Company Size - Self-Employed - 2-10 - 11-50 - 51-200 - 201-500 - 501-1000 - 1000+ #### Pricing Options - $$$$$ - $$$$$ - $$$$$ - $$$$$ - $$$$$ ### Compare Products Sort by **Sponsored**: Sorts listings by software vendors running active bidding campaigns, from the highest to lowest bid. Vendors who have paid for placement have a ‘Visit Website’ button, whereas unpaid vendors have a ‘Learn More’ button. **Reviews**: Sorts listings by the number of user reviews we have published, greatest to least. **Average Rating**: Sorts listings by overall star rating based on user reviews, highest to lowest. **Alphabetically (A-Z)**: Sorts listings by product name from A to Z. Protect your business from disruption, financial loss and reputational damage. Libraesva Email Security stops known and emerging...[Read more about Libraesva Email Security](https://www.softwareadvice.com/secure-email-gateway/libraesva-email-security-profile/) **4.9** ([50 reviews](https://www.softwareadvice.com/secure-email-gateway/libraesva-email-security-profile/#reviews)) Free trial Free version Libraesva Email Security's Best Rated Features 4.86Threat Protection See All Libraesva Email Security's Worst Rated Features 4.33Reporting/Analytics See All Virtru is a cloud-based data privacy and security platform that helps businesses of all sizes across education, IT, manufacturin...[Read more about Virtru](https://www.softwareadvice.com/email-security/virtru-profile/) **4.5** ([39 reviews](https://www.softwareadvice.com/email-security/virtru-profile/reviews/)) Free trial Free version Integrations Integrations Google Drive Gmail +2 more +1 more +0 more AI-Powered Protection for Business Email Security -Stop sophisticated attacks before they reach a user's inbox -Ensure complia...[Read more about Trustifi](https://www.softwareadvice.com/email-security/trustifi-profile/) **5.0** ([20 reviews](https://www.softwareadvice.com/email-security/trustifi-profile/#reviews)) Free trial Free version Integrations Integrations Google Workspace Amazon S3 +5 more +4 more +3 more Trustifi's Best Rated Features 5.0Encryption See All Trustifi's Worst Rated Features 4.63Spam Blocker See All [SMTP2GO](https://www.softwareadvice.com/email-archiving/smtp2go-profile/) SMTP2GO is a cloud-based email delivery platform that helps deliver and track emails. Its features include setup assistance, fee...[Read more about SMTP2GO](https://www.softwareadvice.com/email-archiving/smtp2go-profile/) **4.9** ([178 reviews](https://www.softwareadvice.com/email-archiving/smtp2go-profile/reviews/)) Free trial Free version Integrations Integrations Slack WordPress +2 more +1 more +0 more SMTP2GO's Best Rated Features 4.90Simple Mail Transfer Protocol (SMTP) See All SMTP2GO's Worst Rated Features 3.50Event Triggered Actions See All [NeoCertified](https://www.softwareadvice.com/data-loss-prevention/neocertified-profile/) Designed for businesses in healthcare, finance, legal services, education and other industries, NeoCertified is a secure email e...[Read more about NeoCertified](https://www.softwareadvice.com/data-loss-prevention/neocertified-profile/) **4.9** ([104 reviews](https://www.softwareadvice.com/data-loss-prevention/neocertified-profile/reviews/)) Free trial Free version Integrations Integrations Microsoft Outlook +0 more +0 more +0 more [Selzy](https://www.softwareadvice.com/email-marketing/selzy-profile/) Selzy is a cloud-based email marketing platform for any type of business. It allows marketers to design professional emails in l...[Read more about Selzy](https://www.softwareadvice.com/email-marketing/selzy-profile/) **4.8** ([116 reviews](https://www.softwareadvice.com/email-marketing/selzy-profile/reviews/)) Free trial Free version Integrations Integrations WordPress Zoho CRM +10 more +9 more +8 more Selzy's Best Rated Features 5.0API See All Selzy's Worst Rated Features 4.40CAN-SPAM Compliance See All [Delivery Trust](https://www.softwareadvice.com/hipaa-compliance/delivery-trust-profile/) Delivery Trust offers users total control over emails throughout their entire lifecycle. Messages are secured with the click of ...[Read more about Delivery Trust](https://www.softwareadvice.com/hipaa-compliance/delivery-trust-profile/) **4.8** ([66 reviews](https://www.softwareadvice.com/hipaa-compliance/delivery-trust-profile/reviews/)) Free trial Free version Delivery Trust's Best Rated Features 4.83Signature Management See All Delivery Trust's Worst Rated Features 4.83Data Recovery See All [Zerospam](https://www.softwareadvice.com/cloud-security/zerospam-profile/) Zerospam is a cloud-based email security software designed to help businesses detect potential threats across emails, including ...[Read more about Zerospam](https://www.softwareadvice.com/cloud-security/zerospam-profile/) **4.8** ([135 reviews](https://www.softwareadvice.com/cloud-security/zerospam-profile/reviews/)) Free trial Free version Integrations Integrations Microsoft 365 Microsoft Outlook +1 more +0 more +0 more [Paubox Email Suite](https://www.softwareadvice.com/secure-email-gateway/paubox-profile/) Paubox is a cloud-based, HIPAA-compliant email solution provider that helps small to midsize health care businesses send and rec...[Read more about Paubox Email Suite](https://www.softwareadvice.com/secure-email-gateway/paubox-profile/) **5.0** ([29 reviews](https://www.softwareadvice.com/secure-email-gateway/paubox-profile/reviews/)) Free trial Free version [Avanan](https://www.softwareadvice.com/security/avanan-cloud-security-platform-profile/) Avanan is an email security platform designed to help businesses track and monitor applications including Microsoft Office 365, ...[Read more about Avanan](https://www.softwareadvice.com/security/avanan-cloud-security-platform-profile/) **4.8** ([51 reviews](https://www.softwareadvice.com/security/avanan-cloud-security-platform-profile/reviews/)) Free trial Free version Integrations Integrations Google Drive Slack +9 more +8 more +7 more [ALTOSPAM](https://www.softwareadvice.com/secure-email-gateway/altospam-profile/) ALTOSPAM is a SaaS email security software that addresses all types of structures (company, public service, association) of all ...[Read more about ALTOSPAM](https://www.softwareadvice.com/secure-email-gateway/altospam-profile/) **4.8** ([73 reviews](https://www.softwareadvice.com/secure-email-gateway/altospam-profile/#reviews)) Free trial Free version ALTOSPAM's Best Rated Features 4.70Spam Blocker See All ALTOSPAM's Worst Rated Features 4.33SURLB/URIBL Filtering See All [Mailock](https://www.softwareadvice.com/email-security/mailock-profile/) Exchange confidential information with customers using your existing email setup. Encrypt messages and attachments, and authenti...[Read more about Mailock](https://www.softwareadvice.com/email-security/mailock-profile/) **4.7** ([63 reviews](https://www.softwareadvice.com/email-security/mailock-profile/reviews/)) Free trial Free version Integrations Integrations Microsoft 365 Microsoft Outlook +2 more +1 more +0 more Mailock's Best Rated Features 5.0Email Attachment Protection See All Mailock's Worst Rated Features 3.75Reporting/Analytics See All [Sealit](https://www.softwareadvice.com/encryption/sealit-profile/) Sealit solutions provide end-to-end encryption giving full data management to its users with email and file protection. Seamless...[Read more about Sealit](https://www.softwareadvice.com/encryption/sealit-profile/) **4.8** ([31 reviews](https://www.softwareadvice.com/encryption/sealit-profile/#reviews)) Free trial Free version Integrations Integrations Gmail Microsoft Outlook +1 more +0 more +0 more Sealit's Best Rated Features 5.0Data Security See All Sealit's Worst Rated Features 4.85Reporting/Analytics See All [Security Gateway by MDaemon](https://www.softwareadvice.com/anti-spam/security-gateway-by-mdaemon-profile/) Security Gateway by MDaemon is an anti-spam software designed to help businesses in the healthcare, finance, education, governme...[Read more about Security Gateway by MDaemon](https://www.softwareadvice.com/anti-spam/security-gateway-by-mdaemon-profile/) **4.9** ([15 reviews](https://www.softwareadvice.com/anti-spam/security-gateway-by-mdaemon-profile/reviews/)) Free trial Free version [ContentCatcher](https://www.softwareadvice.com/anti-spam/contentcatcher-profile/) ContentCatcher is a cloud-based, anti-spam and email security solution designed to help businesses of all sizes manage and preve...[Read more about ContentCatcher](https://www.softwareadvice.com/anti-spam/contentcatcher-profile/) **4.9** ([12 reviews](https://www.softwareadvice.com/anti-spam/contentcatcher-profile/#reviews)) Free trial Free version Integrations Integrations Microsoft 365 +0 more +0 more +0 more [Secure Exchanges](https://www.softwareadvice.com/secure-email-gateway/secure-exchanges-profile/) Secure Exchanges allows organizations to exchange, retrieve or sign confidential documents without compromising sensitive inform...[Read more about Secure Exchanges](https://www.softwareadvice.com/secure-email-gateway/secure-exchanges-profile/) **4.6** ([12 reviews](https://www.softwareadvice.com/secure-email-gateway/secure-exchanges-profile/reviews/)) Free trial Free version Integrations Integrations Microsoft 365 Gmail +3 more +2 more +1 more [Abnormal AI](https://www.softwareadvice.com/anti-spam/abnormal-security-profile/) Abnormal stops text-only based socially engineered attacks with natural language processing understanding what normal looks like...[Read more about Abnormal AI](https://www.softwareadvice.com/anti-spam/abnormal-security-profile/) **5.0** ([2 reviews](https://www.softwareadvice.com/anti-spam/abnormal-security-profile/#reviews)) Free trial Free version [IRONSCALES](https://www.softwareadvice.com/email-marketing/ironscales-profile/) IRONSCALES is the leading cloud email security platform for the enterprise that uses artificial intelligence (AI) and human insi...[Read more about IRONSCALES](https://www.softwareadvice.com/email-marketing/ironscales-profile/) **4.7** ([7 reviews](https://www.softwareadvice.com/email-marketing/ironscales-profile/reviews/)) Free trial Free version Integrations Integrations Slack Okta +3 more +2 more +1 more [365 Total Protection](https://www.softwareadvice.com/cloud-security/365-total-protection-profile/) 365 Total Protection is an email security management platform for Microsoft Office 365. This platform provides a comprehensive ...[Read more about 365 Total Protection](https://www.softwareadvice.com/cloud-security/365-total-protection-profile/) **4.8** ([4 reviews](https://www.softwareadvice.com/cloud-security/365-total-protection-profile/#reviews)) Free trial Free version Integrations Integrations Microsoft 365 Microsoft Outlook +1 more +0 more +0 more [Sophos Email](https://www.softwareadvice.com/email-security/sophos-email-profile/) Sophos Email is a cloud-based solution that helps organizations establish secure email networks and provide protection against i...[Read more about Sophos Email](https://www.softwareadvice.com/email-security/sophos-email-profile/) **4.8** ([4 reviews](https://www.softwareadvice.com/email-security/sophos-email-profile/#reviews)) Free trial Free version Integrations Integrations Google Workspace Microsoft 365 +2 more +1 more +0 more [Sentry Email Defense Service](https://www.softwareadvice.com/anti-spam/sentry-email-defence-service-profile/) Sentry Email Defense Service (EDS) is a cloud-based platform designed to help enterprises secure emails against virus, phishing ...[Read more about Sentry Email Defense Service](https://www.softwareadvice.com/anti-spam/sentry-email-defence-service-profile/) **5.0** ([1 reviews](https://www.softwareadvice.com/anti-spam/sentry-email-defence-service-profile/#reviews)) Free trial Free version [modusCloud](https://www.softwareadvice.com/anti-spam/moduscloud-profile/) modusCloud is a cloud-based email security solution that helps managed service providers (MSP), IT resellers and consultants pro...[Read more about modusCloud](https://www.softwareadvice.com/anti-spam/moduscloud-profile/) **4.7** ([3 reviews](https://www.softwareadvice.com/anti-spam/moduscloud-profile/#reviews)) Free trial Free version Integrations Integrations Microsoft Outlook ConnectWise PSA +1 more +0 more +0 more [Fortra's Cloud Email Protection](https://www.softwareadvice.com/cybersecurity/agari-phishing-defense-profile/) Agari Phishing Defense is a cloud-based software that helps protect businesses from online attacks — whether that be social engi...[Read more about Fortra's Cloud Email Protection](https://www.softwareadvice.com/cybersecurity/agari-phishing-defense-profile/) **4.5** ([8 reviews](https://www.softwareadvice.com/cybersecurity/agari-phishing-defense-profile/#reviews)) Free trial Free version Integrations Integrations Microsoft 365 +0 more +0 more +0 more [Cisco Secure Email](https://www.softwareadvice.com/email-security/cisco-secure-email-profile/) Cisco Secure Email is a cloud-based email security solution that helps businesses combat business email compromise (BEC), ransom...[Read more about Cisco Secure Email](https://www.softwareadvice.com/email-security/cisco-secure-email-profile/) **4.6** ([25 reviews](https://www.softwareadvice.com/email-security/cisco-secure-email-profile/reviews/)) Free trial Free version Cisco Secure Email's Best Rated Features 4.50Reporting/Analytics See All Cisco Secure Email's Worst Rated Features 4.50Reporting/Analytics See All [Clearswift SECURE Email Gateway](https://www.softwareadvice.com/security/clearswift-secure-email-gateway-profile/) Clearswift SECURE Email Gateway is a computer security solution that helps businesses streamline processes related to spam monit...[Read more about Clearswift SECURE Email Gateway](https://www.softwareadvice.com/security/clearswift-secure-email-gateway-profile/) **3.0** ([1 reviews](https://www.softwareadvice.com/security/clearswift-secure-email-gateway-profile/#reviews)) Free trial Free version 1 [2](https://www.softwareadvice.com/secure-email-gateway/?page=2) ## Popular Comparisons [ ALTOSPAM vs SpamTitan ](https://www.softwareadvice.com/secure-email-gateway/altospam-profile/vs/spamtitan/)[ Libraesva Email Security vs MimeCast Email Security ](https://www.softwareadvice.com/secure-email-gateway/libraesva-email-security-profile/vs/mimecast-email-security/)[ Proofpoint Email Protection vs Avanan ](https://www.softwareadvice.com/security/avanan-cloud-security-platform-profile/vs/proofpoint-email-protection/)[ Virtru vs Paubox Email Suite ](https://www.softwareadvice.com/secure-email-gateway/paubox-profile/vs/virtru/) Email is a trusted communication method for organizations worldwide. With the rise of the work-from-home model, emails have now become more crucial for business communication. However, email channels can be hijacked by cybercriminals to infiltrate your business network; steal or corrupt data; and launch phishing attacks, ransomware attacks, and more. Secure email gateway software can help your business prevent cyberattacks launched via emails. It stops email messages that contain spam, malware, phishing, or fraudulent contents from reaching their intended recipients. It also scans outgoing emails for spam or malware to ensure your business accounts or domains aren’t added to spam blacklists. Secure email gateways do much more than just protect your email accounts from impersonation or account takeovers. This buyers guide has all the information you need to purchase an email gateway solution that caters to your business requirements. Here’s what we'll cover: - [What is secure email gateway software?](#Whatissecureemailgatewaysoftware) - [Common features of secure email gateway software](#Commonfeaturesofsecureemailgatewaysoftware) - [What type of buyer are you?](#Whattypeofbuyerareyou) - [Benefits of secure email gateway software](#Benefitsofsecureemailgatewaysoftware) - [Key considerations](#Keyconsiderations) - [Market trends to understand](#Markettrendstounderstand) ## What is secure email gateway software? Secure email gateway software is an email security solution that monitors and protects your company’s email servers. It scans the contents of all outgoing and incoming emails to detect and block malicious contents, such as spam, malware, and phishing agents. It helps prevent email data breaches and also lets you meet regulatory compliance and data security standards. _Reporting and analytics in_ [Proofpoint Email Protection](https://www.softwareadvice.com/security/proofpoint-email-protection-profile/) _(_[Source](https://www.softwareadvice.com/security/proofpoint-email-protection-profile/)_)_ ## Common features of secure email gateway software Software features vary by product or vendor, but most secure email gateway platforms have the following features in common: **Threat protection** Protect email contents, communication, and servers against unauthorized access, malware, phishing attacks, and other threats. **Email filtering** Filter the contents of inbound emails to identify unwanted, malicious, or unsolicited data and move them to the spam folder. **Email monitoring** Monitor incoming and outgoing communication to protect against external threats and to ensure sensitive information doesn’t leave your organization. **Data loss prevention** Protect business-critical data from being lost, misused, or accessed by unauthorized users. The software also helps prevent data breaches and comply with industry regulations. [Encryption](https://www.softwareadvice.com/encryption/) Encrypt, or disguise, the contents of sensitive email messages to prevent them from being accessed by anyone other than the intended recipients. **Reporting/analytics** Use reporting and analytics to get insights into metrics such as the number of threats detected by the software and the top spam senders. **Email archiving** Archive email messages for records management, internal audits, regulatory compliance, or future reference. Store the messages in a format that can be digitally indexed, searched, and retrieved. **Third-party integration** Integrate the secure email gateway software with other tools such as cybersecurity, web security, and cloud security platforms. **Email continuity** Continue to send and receive emails during unplanned server outages. The software acts as a backup system that can temporarily take the place of your email servers during outages. ## What type of buyer are you? Before purchasing software, you should assess which buyer category you belong to. The majority of secure email gateway buyers belong to one of the following categories: - **Small and midsize enterprises (up to 500 employees):** Most small and midsize businesses (SMBs) have a strict security budget. Also, they don’t have a dedicated cybersecurity team to back up critical data or continuously monitor their email servers. Buyers in this category should select a budget-friendly secure email gateway that offers comprehensive protection against malware, spam, phishing, and other common threats. They can even opt for free software versions or trials before making an actual investment. - **Large enterprises (over 500 employees):** Large businesses have the budget to invest in advanced security solutions. They usually have an in-house security team and dedicated experts to maintain their security networks. They also have more employees than SMBs, making them more prone to human errors that can cause cyberattacks. A fully featured secure email gateway solution that provides encryption and customization would be a good fit for such buyers. These capabilities will allow them to set up customized data leak prevention and filtering policies to monitor the threat landscape continuously for better protection. ## Benefits of secure email gateway software Below is a comprehensive list of benefits you can expect from deploying a secure email gateway solution: - **Better protection for sensitive data:** Hackers can infiltrate your company’s email channels to target unsuspecting employees and gain access to confidential data. A secure email gateway protects your employees from threats such as viruses, spam emails, and phishing attacks. It not only blocks malicious emails from entering your servers but also encrypts any sensitive data leaving your business networks. - **Improved compliance:** Email gateway software helps your business meet the various security requirements imposed by regulatory agencies. Features such as email archiving and encryption allow you to back up and save email messages and encrypt outgoing communication that contains sensitive information. These features help ensure compliance with internal email security or data loss prevention policies as well as industry regulations such as the General Data Protection Regulation (GDPR). ## Key considerations Here are a few considerations to keep in mind when selecting an email gateway platform: - **Threat intelligence:** Email security solutions with threat intelligence capabilities offer advanced real-time threat protection. They not only identify and block malware but also help administrators understand how their networks are being attacked, which mediums are being used, who’s attacking them, and which users are being targeted the most. A secure web gateway with threat intelligence functionality can learn threat patterns in real time to help your business mitigate risks. - **Deployment options:** Analyze your organization’s needs to check which deployment option will suit you the best—cloud-based, on-premise, or hybrid. Cloud-based software has low upfront costs, requires zero maintenance, and will allow you to scale easily, but your data will be stored in third-party servers. With on-premise software, your IT infrastructure and data will be available onsite, but these tools are expensive and need a dedicated inhouse maintenance team. You can also choose a hybrid model that combines the benefits of both cloud-based and on-premise email security tools. When making a selection, take the maintenance cost, deployment cost, and scalability of all three models into consideration. ## Market trends to understand Here’s a recent trend in the email gateway software market that you should be aware of: - **Increasing use of artificial intelligence (AI) and machine learning (ML) for email threat detection.** [AI- and ML-based email security tools](https://www.information-age.com/comparing-different-ai-approaches-email-security-123494079/) can extract and analyze thousands of email data points to identify common threat patterns in malicious messages. Based on this analysis, they can set rules and blacklist emails they find suspicious. These tools can also get additional insights from observing and analyzing emails in a wider context, i.e., across your company’s email servers, business networks, and cloud environment. This self-learning capability of AI and ML helps detect known threats as well as unknown, evolving threat agents. **_Note:_** _The application selected in this article is an example to show a feature in context and is not intended as an endorsement or a recommendation. It has been obtained from sources believed to be reliable at the time of publication._ ### Related Secure Email Gateway Software - [Anti-spam Software](https://www.softwareadvice.com/anti-spam/) - [Cloud Access Security Broker (CASB) Software](https://www.softwareadvice.com/category/4844-cloud-access-security-broker-casb/) - [DDoS Protection Software](https://www.softwareadvice.com/ddos-protection/) - [Email Security Software](https://www.softwareadvice.com/email-security/) - [Firewall Software](https://www.softwareadvice.com/firewall/) - [Network Access Control (NAC) Software](https://www.softwareadvice.com/network-access-control/) - [VPN Software](https://www.softwareadvice.com/vpn/) - [Website Accessibility Software](https://www.softwareadvice.com/website-accessibility/) - [Website Security Software](https://www.softwareadvice.com/website-security/)