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Secure Email Gateway Software with Microsoft Outlook Integration (2026)

Last updated: March 2026

Secure Email Gateway Software Key Features

    Based on 198 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

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12 software options

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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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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Libraesva Email Security logo

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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MimeCast Email Security logo

Cloud-based email security and threat intelligence platform

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MimeCast Email Security is a cloud-based secure email gateway designed to help businesses in healthcare, IT, legal, financial services, manufacturing, and other industries protect conversations from malware, spam, ransomware, spear-phishing, and zero-day attacks. Supervisors can monitor, detect and remediate internal threats by inspecting internal emails for malicious attachments, links, or confidential information.

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Virtru logo

Cloud-based data privacy and security platform

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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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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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Security Gateway by MDaemon logo

Powerful yet flexible email security software.

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Security Gateway by MDaemon is an email security software designed to help businesses secure email servers from malware and phishing attacks. The solution enables administrators to automatically detect threats across various platforms including Microsoft Exchange Server and Office 365.

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ContentCatcher logo

Cloud-based email security, phishing protection & anti-spam

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ContentCatcher is a web-based SaaS solution offering email security, encryption, anti-spam, phishing protection and compliant archiving to assist organizations of all levels to combat and mitigate malicious email threats, with features including anti-virus, filtering, URL defense, reporting 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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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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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.

Read more about iQ.Suite aaS

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