This plug in is great!

I build websites for clients exclusively on WordPress and this plug in is the best of its kind and allows me to spread its premium services over multiple sites at a very reasonable annual rate. From the get go on the first site I used the free version for single site, it worked perfectly behind the scenes and constantly snagged spammy comments and log in attempts and email spam without needing captcha. You just watch it work. Therein is the effort on your end.

D Brooker