If i use captcha will i be able to stop the spam completely in my blog?

Question

I have a Wordpress blog and the only user input is the commenting system. I want to totally avoid spam comments. Wordpress comes with Akismet but I can also use Captcha. Which plugin/method should I use?

My client doesn't mind users entering verification strings to post comments. If I adopt either Akisment or Captcha will I be able to completely control the spam?

Is it possible to use either Akismet or Captcha for a simple 4-digit verification? If not then please also recommend a plugin/method capable of just a 4-digit verification.

Answer 1

The captchas seem to be fooled by adept people. The Akismet is better option in my view. Having said that you should still use captch along with Akismet :)

Answer 2

No, captchas are not foolproof, so I would definitely recommend you ALWAYS use akismet when allowing comments in WordPress. Akismet will not catch everything either, so the only REAL solution is to moderate your comments. I've found Akismet + moderation to be a nice combo, however. Akismet catches almost everything, and when it doesn't, I usually only have to click the "check for spam" button again when I reach my comments page, and it's been marked as spam in the time between getting my moderation email and getting to the WP comments page.