--- title: "Best Free Anti-spam Software Solutions 2026 | Capterra" description: "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_url: "https://www.capterra.com/anti-spam-software/s/free/" page_type: "subcategory" language: "en" --- # Best Anti-spam Software for free [## SentiSight.ai](https://www.capterra.com/p/266676/SentiSight/) [4.7 (86)](https://www.capterra.com/p/266676/SentiSight/reviews/) SentiSight.ai is a platform that can be used for image labeling and for developing AI-based image recognition applications. [Learn more about SentiSight.ai](https://www.capterra.com/p/266676/SentiSight/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection [## Paubox Email Suite](https://www.capterra.com/p/163166/Paubox/) [5.0 (29)](https://www.capterra.com/p/163166/Paubox/reviews/) Secure email for modern healthcare. Right out of the box. HITRUST CSF Certified solutions. [Learn more about Paubox Email Suite](https://www.capterra.com/p/163166/Paubox/) Anti-spam features reviewers most value AI Copilot Allow/Block List Archiving & Retention Email Routing Encryption Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection [## 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 Generative AI Reporting/Analytics Spam Blocker Spam Detection ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox. Filter (21) Products: Sort By: Featured Partners * * * 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 Category: [Email Security Software](https://www.capterra.com/email-security-software/)[Website Accessibility Software](https://www.capterra.com/website-accessibility-software/)[VPN Software](https://www.capterra.com/vpn-software/)[Firewall Software](https://www.capterra.com/firewall-software/)[Website Security Software](https://www.capterra.com/website-security-software/)[DDoS Protection Software](https://www.capterra.com/ddos-protection-software/)[Network Access Control (NAC) Software](https://www.capterra.com/network-access-control-software/)[Secure Email Gateway Software](https://www.capterra.com/secure-email-gateway-software/)[Cloud Access Security Broker (CASB) Software](https://www.capterra.com/cloud-access-security-broker-casb-software/) I'm looking for Anti-spam Software that is: [For Mac](https://www.capterra.com/anti-spam-software/s/mac/)[For Small Businesses](https://www.capterra.com/anti-spam-software/s/small-businesses/)