From LifeType Wiki
Name: DNS Anti Spam
Latest version: 1.0
Download link: http://prdownloads.sourceforge.net/lifetype/1.1_dnsantispam.zip?download
License: GPL
Author: Mark Wu
Description
This plugin can be used to increase the security of our blog against spammers. It will check if a comment poster is on an open proxy list, and it will also check if the content contains known spammer domains. If so, it will not allow the comment to be posted.
This is not a measure that will always but it will definitely decrease the amount of spam received in a blog.
Configuration
The plugin configuration page can be found under Control Center->Anti Spam Management.
Please enable the plugin before use.
Notes
Since this plugin has to perform an extra check that requires network access, the action of posting a comment can take 2-3 extra seconds. Also, this plugin will not work in those hosts where PHP functions for accessing network streams have been disabled.
