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Old 07-03-03, 09:39 PM
LunarOrbit LunarOrbit is offline
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Preventing email form abuse

Hi, everyone.

I'm trying to find a way to prevent people from abusing my email form, especially preventing them from flooding my inbox by clicking the send button 5000 times.

Is there a way to add a "1 email per minute" restriction to a formmail script so that the delay might discourage them from flooding my inbox? I know some message board programs have some form of flood control built into them.

I was thinking of using a cookie on the user's computer to record the time they last sent me an email, but if they have cookies disabled in their browser that won't work.

I also tried disabling the back button so that they couldn't return to the email form after they sent one, but I couldn't get that to work.

Does anyone have a fool-proof way to prevent the kind of email attack I'm worried about?

I'm using the NMS FormMail clone.

Thanks.
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