Posted by arclight on 01/13/07 00:33

Chuck Anderson wrote:

> I have a contact form on my site (been there for a few years) and just
> lately someone has begun using it to send Spam to me - and only to me
> (one to three times a day). I can tell because I track the usage of
> those contact form scripts (that I wrote) closely. The person is not
> even trying to inject anything into the headers, they are just sending
> me URLs to their porn sites.
>
> Is there any way to block this kind of usage?

I've written an accessible captcha system which you might find of
interest, it's pretty simple to incorporate into a preexisting comment
system, and it's available under the LGPL at
http://system-x.info/?pageid=18&menutree=47

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