Top Anti-Spam Plug-Ins for Outlook

Stop spam before it hits your inbox

spam email

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Do you love your Outlook email but hate spam? It may be time to download one of these spam fighters for Outlook. No matter which one you choose, it wades through the new mail for you, sorting out the spam automatically, and learning as it goes. Check out these spam solutions before you tackle your Outlook.


SpamBully lives up to its reputation as the best overall program for standalone mail servers such as Outlook. It works inside Outlook and with free email accounts. It checks attachments, blocks phishing email, and learns your email habits to catch spam before it reaches your inbox.

The easy-to-install product requires a paid subscription, but a 14-day free trial is available.

SpamBully works with all Outlook versions from Outlook 2000 through Outlook 2016 and Office 365. It is compatible with Windows versions 2000 through Windows 10.



SPAMfighter partnered with Microsoft to build this effective anti-spam filter for use with Outlook. It protects against phishing, identity theft, and other email frauds. The standard version of the software is free for personal use.

SPAMfighter works with Outlook versions 2000 through 2016 and is compatible with Windows 10, 8.1, 8, 7, Vista, and XP (SP2)

Spam Reader

Spam Reader is a free anti-spam add-on for Outlook. The add-on uses Bayesian algorithms and user input to detect and redirect as much as 98 percent of spam that comes to your Outlook inbox. It is compatible with Exchange, POP3, IMAP, and HTTP accounts. 

Spam Reader works with Outlook 2000 through 2010, 2013, and 2016 and is compatible with Windows 10 and earlier.


MailWasher uses Bayesian spam filters to spot spam or profanities. It also uses a customizable list of blacklisted email senders. Just check your email at the server with MailWasher first to block spam before it gets to your computer. It learns as you use the software and allows only good messages in your inbox. 

MailWasher is a free download that works with Outlook (and other email accounts) on Windows 10, 8, 7, Vista, and XP.


Spamihilator stands between your Outlook inbox and the internet and examines every incoming message. A set-up wizard makes installation easy. This free filter runs in the background and claims to achieve the highest out-of-the-box spam recognition rate possible—98 percent. 

Spamihilator is customizable. You can add user-defined words and expressions to its spam word list.

Spamihilator works with Outlook (and other email programs) on Windows, 8, 7, Vista, XP, 2003, and 2000.


The SpamBayes Outlook add-in employs sophisticated analysis using Bayesian statistics to rid your Outlook Inbox of junk mail precisely and in an easy to use manner.

SpanBays is a free download available for Outlook 2000, 2003, 2007, and 2010 on Windows XP, Windows Vista, and Windows 7.

SpamBayes is not compatible with Outlook 2013 and later.