I have is_human() coupled with Akismet and together they knock out all the comment spam I was getting. The other interesting little factoid, is that nearly all the spam I was getting was coming from only three IP addresses… hurray for blacklisting. I’ll share the nefarious addresses so you can firewall them out if you like:
200.63.42.141 200.63.42.136 85.29.204.193
The first two don’t resolve in DNS. The third is a floating IP at ipv4.vnet.ee; I am not sure what that domain is for, but a lot of folks blacklist the entire domain for sending email spam.
Huge thank you to Nick Berlette the author of is_human() and the Akismet team. Have a great weekend!
Update: I have pulled is_human() off my blog as it blocks too much legitimate commentary and cannot stop linkback/trackback spam. Grrr.
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