Akismet, or Automatic Kismet, is a spam filter plug-in for Wordpress. It was created by the team at Automattic and has since been ported to other blogging software. A mail filter is a piece of software which takes an input of an email message. ... WordPress is a blog publishing system written in PHP and backed by a MySQL database. ... A blog is a website in which journal entries are posted on a regular basis and displayed in reverse chronological order. ...
Akismet has currently captured over one million comment spams and now comes default in all Wordpress installations. It works by combining information about spam captured on all Wordpress blogs, and then using those spam rules to block future spam. Link spam (also called blog spam or comment spam) is a form of spamming or spamdexing that recently became publicized most often when targeting weblogs (or blogs), but also affects wikis (where it is often called wikispam), guestbooks, and online discussion boards. ...