Brandon Fenning

Since the vast majority of WordPress spam is automated in nature, the goal of BotBlocker is to block comment spam bots and not hinder users. This is accomplished through the use of honeypot technology, which tricks the spambot into identifying itself by performing actions that a human could not.
BotBlocker’s features include:
<ol>
<li>Works out of the box to block spam</li>
<li>Automatically stops spam-bots from commenting</li>
<li>Zero hindrance to users: no CAPTCHAS, math questions, passwords or extra input required</li>
<li>Zero false positives and ignores registered users</li>
<li>Can be configured to completely block spam-bots or flag comments as spam</li>
<li>Spam detection messages can be easily adjusted</li>
<li>No javascript or cookies required</li>
<li>Hooks into <code>wp-comments-post.php</code> to prevent spam-bots from directly submitting spam comments</li>
<li>Should work fine with most customized comment forms</li>
<li>No API keys required</li>
</ol>
http://www.lform.com/botblocker/ for more information.
Plugin by <a href="http://www.lform.com/" rel="nofollow ugc">LFORM, a web design company</a> in New Jersey.

BotBlocker

Kills spam-bots, leaves humans standing. No CAPTCHAS, no math questions, no passwords, just spam blocking that stops spam-bots dead in their tracks.

<ul>
<li>When judging that Akismet is SPAM when the comment is processed</li>
<li>When marking it as SPAM in the comment section of the dashboard</li>
<li>When you make the approval status SPAM when the comment section of the dashboard edits the comment</li>
</ul>
List IP address from the database in case of the above-mentioned, and Deny the IP address. .htaccess is updates.
It changes in the comment block from
BEGIN written by WordPress plugin – Akismet htaccess writer
to
END written by WordPress plugin – Akismet htaccess writer
in the content of the .htaccess file.
After the .htaccess file, it is written in the tail when the block identifier is not found.
***** Please do not do the contact to the author of the Akismet plug-in for this plug-in *****

Akismet htaccess writer

in connection with Akismet, write in a .htaccess file

BotBlocker vs Akismet htaccess writer