I'm getting hammered by "SEO consultant" spam from India. It appears everyone in that country thinks he/she has something to sell me, but I'd hate to block the whole country. This is why I am looking for a WordPress plugin that blocks comments and contact form submissions which contain a list of keywords I input. Obviously India will be one of the keywords I want to block, but there are others as well.
Is there a plugin that can prevent comments and form submissions based on keyword(s)? Thanks for your help.