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Top Rated Anti-spam Software with Open source - Page 3

Last updated: October 2026

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70 software options

Xcitium Endpoint Detection & Resonse logo

Gain full context of a ransomware attack

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Xcitium's Endpoint Detection and Response (EDR) platform, also referred to within the cybersecurity industry as Endpoint Detection and Threat Response (EDTR), represents an advanced endpoint solution designed for the continuous monitoring of endpoint devices. This solution aims to detect and respond effectively to a wide array of major threats, including but not limited to malware and ransomware.

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MailWasher logo

Software for blocking spam and junk emails

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MailWasher is an anti-spam software designed to help businesses of all sizes locate, view, and delete suspicious or junk emails. It includes a spam detection tool, which allows organizations to scan and remove unwanted emails across servers.

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AVG Internet Security Business Edition logo

Cybersecurity platform for small and midsize businesses

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AVG Internet Security Business Edition is a complete protection solution that helps small and midsize businesses keep their systems and devices safe from external threats.

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TrendAI Vision One Endpoint Security. logo

Security and threat management solution

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Trend Micro Smart Protection Complete Suite, powered by Trend Micro's groundbreaking Enterprise Security Suite (ESS) and fortified with Managed XDR is a cutting-edge managed detection and response solution.

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EuropeanMX logo
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Cloud-based anti-spam for incoming and outgoing messages

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Use the cloud redundancy solution EuropeanMX as a reliable spam filter. Our system offers nearly 100% filter accuracy and virtually no false positives. Protect your IP ranges before getting blacklisted. Continuously archive your emails with EuropeanMX to always have a backup of your emails.

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InboxSeguro Platform logo
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Cloud-based email security platform for businesses

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InboxSeguro Platform is an email security solution offering threat detection, filtering, and inbox protection for businesses of all.

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Performance Management logo
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Competency-based talent management platform

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TalentGuard is a global provider of competency-based talent management solutions. Our platform helps organizations automate performance management, 360 degree feedback, career pathing, succession planning, and development planning. It is seamlessly integrated with HRIS, Applicant Tracking, and LMS.

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MailGuard logo
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Speed Matters. MailGuard stops threats 2- 48hrs faster.

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MailGuard anticipates, predicts and learns from emerging zero-day threats like ransomware, phishing, spear-phishing, Business Email Compromise and similar malicious email-borne attacks, protecting email users from harm.

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MxToolbox Adaptive Blacklist Monitoring logo
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Software for protecting email senders from blacklisting

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MxToolbox Adaptive Blacklist Monitoring is a cloud-based solution that helps enterprises analyze blacklist reputation for all emails and protect outbound email senders from potential blacklisting.

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M365 Manager Plus logo
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Management, reporting, auditing, and monitoring of Microsoft

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M365 Manager Plus is a reporting, auditing, monitoring, management, and security solution for Microsoft 365. Designed for businesses of all sizes, it helps users manage Exchange Online, Azure AD, Microsoft Teams, OneDrive for Business, and other services from a centralized dashboard.

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Area 1 logo
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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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SpamTitan Plus logo
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Zero-day threat protection and intelligence

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SpamTitan Plus is an anti-phishing solution, which provides features such as URL inspection, malicious link neutralizing, URL rewriting, and time-of-click analysis.

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spambarrier logo
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First-class spam and virus protection for your domain.

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Spambarrier is a service that filters your emails before they reach your mail server. The easy way to protect yourself from spam Hosting securely in Germany and compliant with data protection regulations.

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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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Engineer's Toolset logo
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Network troubleshooting solution for IT professionals.

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Engineer's Toolset is a cloud-based and on-premise solution, which helps businesses in technology, travel, transportation, and other sectors track and troubleshoot network issues on a centralized interface. The platform offers various features such as automated network discovery, real-time alerts, configuration management, remote monitoring, subnet calculator, network performance testing, traffic analysis, and bandwidth tracking.

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FactorX.ai logo
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AI-powered email security for modern threats

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FactorX.ai is an AI-native email security platform designed for Microsoft 365 and Gmail. It uses real-time threat detection and behavioral AI to stop phishing, malware, BEC, and ransomware.

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SpamRate logo
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Inbox, Spam or Promotions: see where your email lands

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SpamRate works on the sending side of spam filtering. It delivers a test message to real mailboxes at Gmail, Outlook, Yahoo, and Zoho to show whether that message is treated as spam, and reports the authentication, blacklist, and content triggers behind the outcome.

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CommPeak Dialer logo
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Double Your Call Center’s Reach with Predictive Dialing

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The CommPeak Dialer helps you reach more leads and connect them to the right agents at scale with flexible workflows, adaptable dialing strategies, real-time visibility, and omnichannel reach, handling the complexity of large-scale operations and multiple campaigns.

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BroShield logo
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Computer security and parental control software

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BroShield is a computer security and parental control software that helps individuals and families block inappropriate sites, schedule screen times, restrict activities, receive suspicious activity alerts, and more from within a unified platform. It allows users to monitor activities in real-time, restrict adult websites, set up web firewalls, manage robotic troubleshooting, and handle other processes.

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StartMail logo
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Email platform for end-to-end email encryption

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StartMail is a privacy-first email service that keeps your inbox safe. It is designed for individual and business use. StartMail users can create an unlimited number of email aliases at no extra cost to mask their real email. Custom email addresses are available for businesses.

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