# Best Free Anti-spam Software Solutions 2026 | Capterra > Find and compare the 2026 best free Anti-spam software solutions, using our interactive tool to quickly narrow your choices based on businesses like yours. Source: https://www.capterra.com/anti-spam-software/s/free --- # Best Anti-spam Software for free For more information consult our [Anti-spam Buyers Guide](#buyers-guide-content) [## Xeams](https://www.capterra.com/p/182895/Xeams/) [4.7 (74)](https://www.capterra.com/p/182895/Xeams/reviews/) An email server with a powerful built in spam and junk message filtering engine that eliminates up to 99% of spam upon installation. [Learn more about Xeams](https://www.capterra.com/p/182895/Xeams/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## ALTOSPAM](https://www.capterra.com/p/176264/ALTOSPAM/) [4.8 (73)](https://www.capterra.com/p/176264/ALTOSPAM/reviews/) SaaS software security filter : antispam, antivirus, antiphishing, antiransomwares. [Learn more about ALTOSPAM](https://www.capterra.com/p/176264/ALTOSPAM/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## LeanMail](https://www.capterra.com/p/200711/LeanMail/) [4.8 (43)](https://www.capterra.com/p/200711/LeanMail/reviews/) LeanMail brings relief for MS Outlook users who have tried to keep their inbox organized but have given up. 5 solutions in one. [Learn more about LeanMail](https://www.capterra.com/p/200711/LeanMail/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## Spambrella](https://www.capterra.com/p/174341/Spambrella/) [4.8 (42)](https://www.capterra.com/p/174341/Spambrella/reviews/) Spambrella is used Globally by some of the Worlds largest and most successful security service providers. [Learn more about Spambrella](https://www.capterra.com/p/174341/Spambrella/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## MailCleaner](https://www.capterra.com/p/93208/MailCleaner/) [4.6 (26)](https://www.capterra.com/p/93208/MailCleaner/reviews/) Professional anti spam and threats server protection for ISP, SME, SMI & large companies. [Learn more about MailCleaner](https://www.capterra.com/p/93208/MailCleaner/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## IPQS](https://www.capterra.com/p/233381/IPQualityScore/) [4.9 (19)](https://www.capterra.com/p/233381/IPQualityScore/reviews/) IPQS provides innovative fraud prevention solutions with real-time data, advanced APIs, and customizable scoring settings. [Learn more about IPQS](https://www.capterra.com/p/233381/IPQualityScore/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## SilverSky Email Protection Suite](https://www.capterra.com/p/198920/SilverSky-Email-Protection-Suite/) [4.5 (17)](https://www.capterra.com/p/198920/SilverSky-Email-Protection-Suite/reviews/) SilverSky provides advanced email protection, compliance and information protection solutions to keep your company and users safe. [Learn more about SilverSky Email Protection Suite](https://www.capterra.com/p/198920/SilverSky-Email-Protection-Suite/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## INLYSE Malware.AI](https://www.capterra.com/p/10004001/INLYSE-Malware-AI/) [5.0 (14)](https://www.capterra.com/p/10004001/INLYSE-Malware-AI/reviews/) INLYSE Malware.AI is an AI-based security platform that quickly detects malware and cyber-attacks. [Learn more about INLYSE Malware.AI](https://www.capterra.com/p/10004001/INLYSE-Malware-AI/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## MTCaptcha](https://www.capterra.com/p/188987/MTCaptcha/) [5.0 (1)](https://www.capterra.com/p/188987/MTCaptcha/#reviews) Provide enterprises with continuous risk profiling and best of class security solutions as easy to use plugins and SaaS. [Learn more about MTCaptcha](https://www.capterra.com/p/188987/MTCaptcha/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine [## OOPSpam](https://www.capterra.com/p/198613/OOPSpam-Anti-Spam/) [5.0 (1)](https://www.capterra.com/p/198613/OOPSpam-Anti-Spam/#reviews) Privacy-friendly, highly accurate anti-spam filter for contact forms and comment systems. [Learn more about OOPSpam](https://www.capterra.com/p/198613/OOPSpam-Anti-Spam/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine Filter (12) Products: Sort By: Sponsored * * * Plan Type Free Trial Popular 85% of professionals opt for a 30-day trial before the software purchase Other subsciption plans: Free Version Monthly Subscription Annual Subscription One-Time License Key Features All key features Popular We have selected the most important and critical features as defined by Capterra user reviews AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Generative AI Reporting/Analytics Spam Blocker Spam Detection Spam Quarantine Deployment Cloud, SaaS, Web-Based Desktop Mac Desktop Windows Desktop Linux On-Premise Windows On-Premise Linux Desktop Chromebook Mobile Android Mobile iPhone Mobile iPad Related Software 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