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Anti-spam Software with Microsoft Outlook Integration (2026)

Last updated: March 2026

Key features of Anti-spam Software

Based on GetApp's analysis of verified user reviews collected between July 2021 and August 2024.

  • Spam Blocker: Users value the spam blocker's effectiveness in filtering unwanted emails, calls, and messages while minimizing false positives. 95% of reviewers rated this feature as important or highly important.
  • Spam Detection: Reviewers highlight the AI capabilities in detecting and quarantining spam, reducing inbox clutter, and protecting against phishing. 93% of reviewers rated this feature as important or highly important.
  • Allow/Block List: Users appreciate the ease of blocking and allowing specific contacts or domains to manage spam and maintain privacy. 93% of reviewers rated this feature as important or highly important.
  • Spam Quarantine: Users find the quarantine feature useful for isolating potential threats and allowing review and recovery of emails. 92% of reviewers rated this feature as important or highly important.
  • Phishing Protection: Reviewers commend the detailed analysis and filtering of phishing attempts to protect personal and business data. 88% of reviewers rated this feature as important or highly important.
  • Anti Virus: Users note the comprehensive virus scanning and real-time threat blocking, enhancing overall system security. 87% of reviewers rated this feature as important or highly important.
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15 software options

ContentCatcher logo

ContentCatcher

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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Heimdal Email Security logo

Heimdal Email Security

Email Protection in a Redefined Spam Filter

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Heimdal Email Security is an email protection solution that combines advanced spam filtering with robust malware prevention through a multitude of modern technologies.

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SpamTitan logo

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

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SpamTitan blocks spam, viruses, malware, ransomware, phishing attempts and other email threats. SpamTitan provides advanced yet easy to use email security for your business. Office 365 friendly

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Microsoft Defender for Office 365 logo

Cloud-based email security and threat management software

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Microsoft Defender for Office 365 is a cloud-based email security software designed to help businesses automatically detect, investigate, and resolve potential email threats on a centralized platform. Supervisors can configure security policies, perform spoof checks, and maintain a record of reported incidents.

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Topsec Cloud Solutions logo

Your Managed Email Security Specialists

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Topsec Email Security is a complete email filtering solution that helps organizations to check all their incoming and outgoing email content for virus and spam.

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LeanMail logo

Don't give up finding a solution for email until you try LM

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Get Total Control Over Outlook. For every type of user and every personality type. Five easy, customizable solutions that give you all the control over your inbox that you want.

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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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INLYSE Malware.AI logo

VISUAL AI BASED MALWARE DETECTION

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INLYSE Malware.AI is a revolutionary visual AI-based malware detection solution that utilizes cutting-edge technology to convert files into graphical representations and analyze them comprehensively for any signs of malware.

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ESET Cloud Office Security logo

Security platform for Microsoft 365 applications

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ESET Cloud Office Security provides advanced protection for Microsoft 365 applications against malware, spam or phishing attacks with ultimate zero-day threat defense and an easy-to-use console.

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Mailinblack logo

Cloud-based & on-premise email protection software

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Protecting businesses from malware, phishing, ransomware, and spam emails.

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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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Vade logo

Collaborative cybersecurity based on IA, enhanced by people.

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Vade is a global cybersecurity company specializing in the development of collaborative email security solutions. Combining human and machine intelligence, Vade's solutions form a cybersecurity alliance that is powered by AI and enhanced by people.

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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
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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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