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Spam Free WordPress

Todd Lahman's comment spam blocking plugin that blocks 100% of the automated spam with zero false positives.

• Version 1.9.3
• Updated 2013-5-14
• Downloads 440,101
• Average Rating
  4 stars

Mollom

A plugin that brings the power of Mollom (http://www.mollom.com) to WordPress and makes your website spamfree!

• Version 0.7.5
• Updated 2013-1-3
• Downloads 10,565
• Average Rating
  3 stars

SiteBrains Interactive Spam Blocker

SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the user types and on our servers upon submission.

• Version 6.3.7
• Updated 2011-11-11
• Downloads 5,848
• Average Rating
  3 stars