Spam Blocking

It relies on the fact that most spam messages contain hyperlinks and also on the fact that (for now) (most) spambots don't register on the sites they want to spam. It tries to block comment-spam at an early stage.If an anonymous user tries to post a comment which contains a link, he/she will get... Platforms: BSD Solaris

It relies on the fact that most spam messages contain hyperlinks and also on the fact that (for now) (most) spambots don't register on the sites they want to spam. It tries to block comment-spam at an early stage.If an anonymous user tries to post a comment which contains a link, he/she will get... Platforms: BSD Solaris

It allows defining question/answer pairs in order to differentiate humans for bots.It does not appear when the users are logged in and it features ajax form field validation.InstallationUnpack and upload it to the /wp-content/plugins/ directory.Activate the plugin through the 'Plugins' menu in... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

The pool of words that are to be displayed, can be customized.InstallationUnpack and upload it to the /wp-content/plugins/ directory.Activate the plugin through the 'Plugins' menu in WordPress. Requirements: - WordPress 2.0 or higher Platforms: Windows, Mac, *nix, PHP, BSD Solaris

Legitimate comments that get blocked can be presented with a captcha to confirm that the comment is legitimate.InstallationUnpack and upload it to the /wp-content/plugins/ directory.Activate the plugin through the 'Plugins' menu in WordPress. Requirements: - WordPress 2.3 up to 2.6 Platforms: Windows, Mac, *nix, PHP, BSD Solaris

GFI MailEssentials for Exchange/SMTP is a server based anti spam, anti-phishing & email management solution for Microsoft Exchange Server & Notes/SMTP servers. Over 98% of spam and phishing mail are caught before they reach the mail server, no need to deploy client software. Its advanced Spam... Platforms: Windows

SpamScreener helps you easily and accurately block spam, and enjoy a productive emailing experience. Unlike other spam blockers that use traditional filtering techniques which are not entirely accurate, SpamScreener utilizes an advanced challenge/response technology that provides virtually 100%... Platforms: Windows

Clove AntiSpam is an easy-to-use utility to protect Microsoft Outlook 2000/XP/2003 against spam, which can automatically quarantine spam outside of your inbox whenever new mail arrives. Clove AntiSpam seamlessly integrates into Microsoft Outlook workspace, with perfect performance and zero false... Platforms: Windows

MailGuardian is an easy-to-use SPAM blocking utility according to Ben Slaney, developer of MailGuardian. Unlike many SPAM blocking utilities - which use confusing and tedious filters setup, our approach is simple and straight forward. We ship a list of filters that match the keywords found on... Platforms: Mac

MailGuardian is an easy-to-use SPAM blocking utility according to Ben Slaney, developer of MailGuardian. Unlike many SPAM blocking utilities - which use confusing and tedious filters setup, our approach is simple and straight forward. We ship a list of filters that match the keywords found on... Platforms: Mac

VIPRE® Internet Security combines next-generation antivirus and anti-spyware technologies with a bi-directional firewall and spam and web filtering for all-in-one protection against malware. VIPRE was built from scratch with all-new technologies that optimize your PC’s overall performance —... Platforms: Windows

SecurityGateway email spam firewall for Exchange/SMTP Servers provides affordable email security with a powerful spam filter that serves as a Microsoft Exchange firewall or SMTP firewall. It also protects against viruses, phishing, spoofing, and other forms of malware that present an ongoing... Platforms: Windows

It checks if the IP address of the trackback sender is equal to the IP address of the webserver the trackback URL is referring to.It the queries the Web page located at the URL and searches it for a link back to your blog. If one is not found, the trackback is considered spam.There are several... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

When a browser loads that stylesheet a cookie is dropped on the user machine. If the user then leaves a comment the cookie is checked. If it doesn't exist the comment is marked as spam.InstallationCopy into your plugins folder and activate. If you are using a caching plugin such as WP Super Cache... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

Visitors must use obfuscated javascript to submit a proof-of-work that indicates they opened the website in a web browser, not a robot.If the javascript check fails, WP Hashcash gives three options; it can either put the comment into moderation (default), put the comment in the akismet queue, or... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

WP-BlackCheck is an attempt to reduce spam in the comment queue of my blogs based on the fact that it is only a couple of IPs trying to flood my sites with spam.Blocking them via htaccess or other server settings would do the job, but that would require to keep all the files in sync. So I decided... Platforms: PHP

This module provides an unobtrusive form anti-spam method as an alternative to an HCI challege-response test such as a CAPTCHAIt differs from other spam blocking modules in two ways * Unlike Captcha and Re-Captcha no additional human-computer interaction is required. * Unlike Mollom or Akismet,... Platforms: PHP

A mix of patented protection neutralizes viruses, spam, network invaders, and unsafe downloads • Insight¬ identifies which files and applications are safe and which are dangerous, using the combined feedback of more than 175 million Norton users. • SONAR Behavioral Protection detects... Platforms: Windows, Windows 7

SurgeMail is the fastest, most robust and secure, full-featured email server on the market today supporting all the protocols and standards. Surgewall works with every mail server and can be installed in minutes, instantly gives you the uniquely advanced, Spam Blocking, Virus Scanning and even... Platforms: *nix

SpamSlam is a convenient tool designed to eliminate easily and automaticallyall unwanted junk messages from every email account you own. Junk email hasbecome such a problem that important messages are often lost in the delugeof unsolicted messages that clutters one's mailbox. SpamSlam is... Platforms: Mac