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Questions tagged spam-prevention

6 questions

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24
votes
3
answers

What is the difference between a SPF include: and a:?

email spam-prevention spf
asked 2013-03-06T06:27:58.453
64
votes
19
answers

Hunting cheaters in a voting competition

php spam-prevention voting
asked 2010-02-25T09:51:01.257
37
votes
13
answers

Spam Prevention/Reduction - Contact Form?

javascript html spam-prevention
asked 2010-02-09T16:04:27.140
10
votes
2
answers

How does ReCAPTCHA work?

security captcha recaptcha spam-prevention
asked 2009-09-16T21:52:44.080
19
votes
4
answers

Neural networks for email spam detection

machine-learning neural-network classification spam-prevention
asked 2009-04-20T21:44:02.173
120
votes
25
answers

What is the best way to programmatically detect porn images?

spam-prevention
asked 2009-04-03T09:39:51.557