The best free spam filters for Windows

Protect your mailbox against spam and incoming viruses and malware with a good spam filter. Some of the best spam filtering tools for Windows are completely free. Try this to effectively clear your inbox of all junk mail and save you time and attention on more important things.

Content
  1. Spam hilator
  2. What do we like?
  3. What we don’t like
  4. Spam protection
  5. What do we like?
  6. What we don’t like
  7. SpamExperts
  8. What do we like?
  9. What we don’t like
  10. K9
  11. What do we like?
  12. What we don’t like
  13. G-Lock Anti-Spam
  14. What do we like?
  15. What we don’t like
  16. MailWasher Free
  17. What do we like?
  18. What we don’t like
  19. SpamWeasel
  20. What do we like?
  21. What we don’t like
  22. Cactus spam filter
  23. What do we like?
  24. What we don’t like

Spam hilator

What do we like?

  • There are many plugins available to extend the functionality.

  • Clean interface that isn’t overflowing with features.

What we don’t like

  • There is no way to classify or classify non-spam.

  • No support for remote web management.

Spamihilator is an attractive, easy-to-use anti-spam tool that works with any email client and has a good detection rate thanks to Bayesian filters. It deletes over 98 percent of spam emails before they reach your inbox. Spamihilator is highly configurable and works with both 32-bit and 64-bit Windows PCs.

Spam protection

What do we like?

  • Integrated virus protection adds extra security.

  • Keeps your primary email account 100 percent free.

What we don’t like

  • Inconvenient to set up and use.

  • Adds an annoying subject header to any message.

Spamfence is a simple yet very effective spam and virus filtering service. It uses eXpurgate, a Spamfence service, to secure your inbox. The only downside to Spamfence is that it relies on forwarding and requires two different email accounts.

SpamExperts

What do we like?

  • Flexible rate plans are available for different needs.

  • The control panel is very mobile.

What we don’t like

  • The service department is located in Europe and works according to the European time.

  • Gets overzealous at times and marks things as spam that are not spam.

SpamExperts effectively detects and removes spam thanks to its real-time database and user synchronization. It works right out of the box, with any email program and with almost any email account. SpamExperts can be deployed locally or run from the cloud and monitor incoming and outgoing emails. With the acquisition of SolarWinds MSP, SpamExperts has gained an intuitive and easy to configure user interface. Partly as a result of the acquisition, SpamExperts is no longer free, but a free trial version is available.

K9

What do we like?

  • Advanced settings allow you to track session statistics.

  • Allows you to add custom sound notifications.

What we don’t like

  • No technical support.

  • Takes some time and works to set it up correctly.

K9 is an amazingly accurate, easy to use and fast learning Bayesian spam filtering tool. Too bad this gem only works with POP accounts and doesn’t have remote management. Although K9 is no longer under development, it still works well for many Windows users.

G-Lock Anti-Spam

What do we like?

  • Clears spam on the server before it reaches your email.

  • Easily recover deleted messages.

What we don’t like

  • Not available for Mac or Linux.

  • The full version requires the purchase of a license after 60 days.

G-Lock SpamCombat is a comprehensive and competent Bayesian spam filter that can use DNS blacklists. G-Lock SpamCombat uses email filters to prevent spam from reaching your inbox: advanced filter, whitelist, blacklist, HTML validator, DNSBL filter and Bayesian filter. This program works with POP3 and IMAP accounts.

MailWasher Free

What do we like?

  • Works well on iOS and Android mobile devices.

  • Works as an email client, allowing you to view messages from multiple accounts in one place.

What we don’t like

  • Cannot block messages based on country of origin.

  • Customer service has bad reviews.

MailWasher Free is a flexible, elegant and efficient spam filtering solution. MailWasher Free only works with one account and does not have the blacklisting and server-side filtering in MailWasher Pro. However, the free version allows you to view emails on the server and delete them there. This real-time spam filtering service works with POP3, IMAP, AOL, Gmail, and more.

SpamWeasel

What do we like?

  • Has significantly more features than most free alternatives.

  • Signing up is no longer necessary.

What we don’t like

  • Creating custom filters requires some programming knowledge.

  • No customer support other than an interactive user guide.

SpamWeasel is one of the most powerful free anti-spam tools with a complete filter scripting language. This easy-to-install filter works in a POP3 environment over any connection. Each message is ranked by the number of penalty points it receives in accordance with the rules of the program. While the program works great out of the box, writing new filters isn’t easy.

Cactus spam filter

What do we like?

  • The learning feature helps to automate the filter setting process.

  • Never deletes messages automatically.

What we don’t like

  • Use with Gmail or an SSL connection requires additional configuration.

  • No mobile support.

Cactus Spam Filter is an easy-to-use and accurate spam filter that only works with POP3 accounts. When you download and install Cactus Spam killer, it immediately starts protecting your mailbox. No additional settings are required in your email client. Cactus Spam Filter is compatible with Windows 7 and older operating systems.

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