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Free Anti-spam Software
Last updated: March 2026
9 software options
Sponsored
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Effectively protect all your company's emails
From 7€ to 19€ ht /y/user (depending on the number of emails addresses).
Read more about ALTOSPAM
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Don't give up finding a solution for email until you try LM
We offer a 30-day free trial and an initial free training to companies with a minimum of 20 employees. Each of our modules are sold separately or in bundles. Pay only for what you need.
Read more about LeanMail
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Fraud prevention solution for proactively detecting fraud
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud & on-premise anti spam software for businesses
MailCleaner Cloud Anti-Spam - hosted and maintained on MailCleaner's backbone network: $130/year MailCleaner Cloud Appliance - dedicated cloud based virtual appliance with users' own settings: $1655/year MailCleaner Virtual Appliance: full business anti spam software for hardware or virtual machine: $827/year
Read more about MailCleaner
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
VISUAL AI BASED MALWARE DETECTION
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Advanced email security and compliance for SMBs
Please contact SilverSky directly for pricing details.
Read more about SilverSky Email Protection Suite
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
We catch the phish that others miss!
Starter - Free (Up to 500 mailboxes) Email Protect - $6.00 Per mailbox / Per month Complete Protect - $8.33 Per mailbox / Per month
Read more about IRONSCALES
Standard Edition starts at $345 per month for 100 users/mailboxes Professional edition starts at $595 per month for 100 users/mailboxes Contact ManageEngine for more information on pricing.
Read more about M365 Manager Plus
Faire Abrechnung nach Domain und nicht pro Benutzer
Read more about spambarrier