I fully understand this and I have done this. However, the only thing it seems to do is to dump the comment directly in the trash. It won't block the IP address from accessing my site completely. I am tired of cleaning up the trash and all the comments this one IP address keeps leaving on my site. All they seem to do is change their email address and come again. The comment is moved directly to the trash. Then I must block this email address so they can't comment again. I don't want them to even be able to open my website. That is what I need.