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Re: [ic] Spammers circumventing form checks


Hi Grant-
This trick ended spam from my html form:

1. Add an extra textarea field to your form.
2. Use css to make that box hidden to users. Only spambots will read the source code and fill in that field.
3. Filter out email that contains that form field.

We do it in the nms formmail program.
There's a description of this method here:
http://blog.horizonweb.co.uk/2007/07/how-to-stop-spam-bots-with-formmail-and.html There's a mistake in the perl code on that page, it shows "&gt" instead of ">".

Hope this helps.
-John

Grant wrote:
I have a check set up in my email form that would prevent the spam I
receive through there from being sent, but it doesn't seem to be
preventing it.  I guess this means the spammers are posting directly
to the server and not using the actual page.  Is there any way to
prevent this from happening?

- Grant
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