No spam in comments. No captcha.
You may enable sending all rejected spam comments to admin email. Edit anti-spam.php file and find "$antispam_send_spam_comment_to_admin" and make it "true".
Some themes, for example p2, use ajax to submit comment. But if the script of the theme will not submit extra Anti-spam fields - so Anti-spam plugin will not work.
Anti-spam plugin blocks about 99.9% of automatic spam messages (sent by spam-bots via post requests). But Anti-spam plugin will pass the messages which were submitted by spammers manually via browser. But such messages happens very rarely.
Users rarely use trackbacks because it is manual and requires extra input. Spammers uses trackbacks because it is easy to cheat here. Users use pingbacks very often because they work automatically. Spammers does not use pingbacks because backlinks are checked. So trackbacks are blocked by default but pingbacks are enabled. You may enable trackbacks if you use it. Edit anti-spam.php file and find "$antispam_allow_trackbacks" and make it "true". You may read more about the difference between trackbacks and pingbacks.
You may check out the source code of the plugin. The plugin has about 100 lines of code and pretty easy to read. I was trying my best to make plugin's code clean. Plugin is small but it makes all the dirty work against spam pretty good. You may give it a try.
Do not order spam-newsletters because people hate spam and people will not like products received from spam. Do not order products from spam. If spam will be less effective than spammers will stop sending it.
Requires: 3.0 or higher
Compatible up to: 3.6.1
Last Updated: 2013-10-23
3 of 5 support threads in the last two months have been resolved.
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