How to prevent Wordpress contact form 7 spam?
 

Thinking or recapcha plugin + askimet. Too much?
It is very important to prevent all the spam but also not to stop legit submits (I heard that askimet sometimes stops legit submits).

put your email on a image? :2 cents:

Unfortunately this needs to be contact form this time.

Add a question.

Problem is that somehow bots go through questions. Its impossible for them to guess the answer randomly, but they go through like question did not exist.
Thats why I was contemplating using askimet ON TOP of that. Not only askimet. But in this case some people can not go through.
And in this case I need accuracy:
that 100% bots would be stopped and 100% real people would go through.

Any chance for bots to pass it without entering correct answer? Like I mentioned, I had similar thing (not this plugin) and some bots (very few though) passed like it was not there. I am 100% sure they did not guess correct answer because it was impossible to know answer if you were not actual human).

I've not noticed anything getting through and have mostly been using simple maths questions.

It's akismet. :winkwink:

use keycaptcha, they are fun and I don't see bots breaking them that easy

Freaking awesome. I love it.

http://wordpress.org/plugins/really-simple-captcha/

works for me

:thumbsup

I use a quiz, and haven't had any problems with that. I use math problems.

Math problems for me: not one spam contact form.

Stop using Wordpress?

captcha + math problems + cloudflare

Too much would piss off visitors. Not smart to do that :2 cents:

A lot ways to prevent spam from contact forms. E.g. add a hidden token which is counted on the request IP, or simple encode your form with JavaScript.

what he said.

and

add a invincible field .
if field is not empty = spam.

Negative captcha? :thumbsup

Thanks for all the suggestions. Now all of that would be too much..
Maybe captcha + invincible field would suffice?

Or what combo of 2 would you guys suggest?