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Secure Email Gateway Software with Third-Party Integrations (2026)

Last updated: January 2026

Secure Email Gateway Software Key Features

    Based on 195 user opinions, we identified 6 features that are important for any product in Secure Email Gateway Software

  • Email Filtering

    Use filters to process, organize and categorize emails to identify spam, malware and other unwanted messages

    Average user rating

    4.6

  • Phishing Protection

    Identify phishing emails

    Average user rating

    4.3

  • Threat Protection

    Protect incoming and outgoing communications against malware, spam, display spoofing, and other threats

    Average user rating

    4.5

  • Spam Quarantine

    Feature in email systems that identifies suspicious or unsolicited emails and holds them in a separate folder for review or deletion

    Average user rating

    4.6

  • Spam Blocker

    Filters used to determine different types of malware threats

    Average user rating

    4.4

  • Allow/Block List

    Lists of domains/addresses that are allowed / rejected

    Average user rating

    4.6
1 filter applied

Features

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User rating

19 software options

Libraesva Email Security logo

Libraesva Email Security

Exceptional Email Security

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Libraesva Email Security stops known and emerging email threats from reaching their target, so you only receive legitimate messages. It provides exceptional email security by integrating cloud email and a secure email gateway with Libraesva’s unique Adaptive Trust Engine.

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Virtru logo

Virtru

DATA SHARING, PRIVACY, AND INNOVATION. SECURED.

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Virtru offers a range of data protection products that provide encryption, access controls, key management, and persistent audit to meet security and privacy needs. Supports HIPAA, GDPR, CCPA, ITAR, CJIS, NIST, FERPA and CCMC compliance & integrates seamlessly into the platforms you already use.

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SpamTitan logo

Anti-spam filter for business email. Vital email security.

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SpamTitan is an anti-spam email security solution that identifies & blocks phishing, malware, spear phishing, malicious and spam emails to protect business email, with multi-layered analysis and authentication. 5 Star product with great pricing and amazing front line support

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SMTP2GO logo

Fast, reliable mail delivery and management solution

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SMTP2GO is a cloud-based email management solution which helps businesses track emails and generate visual reports. Key features include data management, email monitoring, blacklisting, email authentication, and an API.

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Selzy logo

Affordable email marketing software

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Selzy is an intuitive email marketing platform that suits any business needs. It offers a wide range of integrations with your favorite tools, an easy-to-use drag&drop editor, and email templates for any occasion.

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ALTOSPAM logo

Effectively protect all your company's emails

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ALTOSPAM is an email protection solution for all businesses, associations and local authorities. Choose advanced email security compatible with all mail servers, including Office 365. Try ALTOSPAM for free.

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Mailock logo

Secure emails with encryption and recipient authentication

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Exchange confidential information securely with the Mailock Enterprise secure email gateway. Encrypt messages and authenticate recipients.

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Paubox Email Suite logo

HIPAA-compliant email encryption software

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Paubox Email Suite is a HIPAA-compliant email encryption software designed to help businesses manage and secure emails using encryption and data loss prevention methods. It includes ExecProtect, which allows businesses to prevent data breaches, phishing, and display name spoofing attacks by automatically detecting and blocking impersonation scams and informing administrators via emails.

Read more about Paubox Email Suite

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Inxmail logo

Email marketing software to create newsletters & emails

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Inxmail is the service-oriented tech specialist for secure, data-driven communication in email marketing.

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Mail Assure logo

Email, Secured.

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Cloud-based email security designed to help your customers stay in control while safeguarding their inbound and outbound email.

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Trustifi logo

Protect Your Business Emails with AI-Powered Security

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Email security solution that helps manage threat detection, regulatory compliance, data encryption, whitelisting/blacklisting, and more.

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Secure Exchanges logo

Protect data with point-to-point encrypted email exchange

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The fully integrated & easiest secure technology to exchange, retrieve or sign confidential documents up to 2.5G. It doesn't require any change in its users behavior or server migration.

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IRONSCALES logo

We catch the phish that others miss!

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We ensure your inboxes are uncompromised and your team is unburdened.

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365 Total Protection logo

Email security management for Microsoft Office 365

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365 Total Protection is an email security & compliance solution for Microsoft Office 365 with features for tracking emails in real time, handling infomail, blocking spam, filtering for compliance, defending against threats, black & whitelisting, archiving emails, analyzing communications, & more

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Sophos Email logo

Software for managing email encryption and secure networks

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Sophos Email is a cloud-based software designed to help businesses establish secure email networks and ensure protection from malware, intrusion, unauthorized access, and other online threats. The application includes anti-ransomware technology, which enables organizations to stop boot-record and ransomware attacks using behavioral analysis.

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Abnormal AI logo

A Fundamentally Different Approach to Email Security

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Abnormal provides total protection against the widest range of attacks including phishing, malware, ransomware, social engineering, executive impersonation, supply chain compromise, internal account compromise, spam, and graymail.

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Area 1 logo
(0)

Secure email gateway and anti-spam software

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Area 1 Horizon is a network security management software designed to help businesses protect systems against phishing attacks across various traffic sources including emails, web pages, and networks. The platform enables administrators to receive notifications about blocked phishing campaigns on a unified interface.

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iQ.Suite aaS logo
(0)

Enterprise email management & security solution for M365

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iQ.Suite aaS is a cloud-based enterprise email management and security solution for companies using Microsoft 365. It offers a comprehensive set of features including content-driven encryption, insider threat detection, wrong recipient protection, and more. iQ.Suite aaS offers malware and spam detection to minimize risk and secure emails from unauthorized access. Additionally, to ensure company policies are met, this solution can be used to apply business policies to email communications.

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Fortra’s DMARC Protection logo
(0)

Software for protection from spoofing and phishing attacks

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Agari Brand Protection is a simple anti-phishing solution that helps enterprises prevent and recover from email spoofing attacks. Businesses can block phishing attacks with DMARC, SPF, DKIM, and other email authentication services.

Read more about Fortra’s DMARC Protection

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