Quote Originally Posted by ts232 View Post
Shortly after upgrading to 1.5.3 I am not getting a tonne of contact form spam. I had captcha working on my old 1.3.9h system, but it seems that the magical new default spam blocking in 1.5.3 is not working for me. I'm on the cusp of installing this module to block it, but thought I would check if anyone else is having the same issue.
I think I may have found the problem. in Configuration->Email, make sure "Email Friendly Errors" is set to "true". It was set to false by default when I upgraded to 1.5.3, but after switching it to true I have not had any spam message (going on 48 hours, knock on wood).