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GolfMad
Posts: 190
Joined: 3/20/2002
From: UK
Status: offline
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Preventing Spam form completion .net2.0 - 3/30/2007 6:37:46
Trying to use .net and encouraged by Jimco's marvellous tutorial for form to email using .net 2.0, I created a successful form.
I have problems on other sites where spam robots are posting and because it is coming internally the domain spam filter lets them through.
So I thought I would venture in to making a field that a human would complete to beat the bots. I had seen this on a php form to email package but thought I must be able to use .net 2.0 somehow. I do not know how the images with codes in work that some form validations require work - PayPal etc.
Could someone please look at the form and tell me whether this will beat the spambots. I have a field required control, with a field validator set to a value of 'cold'.
However I notice that 'cold' shows up in 'View source' so will the spambots get this?
http://www.davidwyoung.co.uk/contact.aspx
If there is another not to dificult but more secure way I would be interested.
Thanks
Phil
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ou812
Posts: 1603
Joined: 1/5/2002
From: San Diego
Status: offline
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RE: Preventing Spam form completion .net2.0 - 3/30/2007 11:49:46
Unfortunately, I think spambots have javascript turned off, and therefore will not use your validation. As an example, I turned off JS and sent you an email through your form without using "cold" as the answer. To beat the bots I do my checking on the server side, once the form is actually submitted.
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EnterpriseDB: Enterprise-class relational database management system
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mar0364
Posts: 3221
Joined: 4/5/2002
From: Florida, US
Status: offline
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RE: Preventing Spam form completion .net2.0 - 3/30/2007 13:37:45
I've never used it, but this look like what you want.
http://www.codeproject.com/aspnet/CaptchaControl.asp
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“Stay committed to your decisions, but stay flexible in your approach.”
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GolfMad
Posts: 190
Joined: 3/20/2002
From: UK
Status: offline
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RE: Preventing Spam form completion .net2.0 - 3/31/2007 2:29:02
Thanks for the test, I was amazed to hear that an ASP contol can be side tracked by not having javascript turned on- must try it myself.
Thanks for the captcha, not sure I understand how to implement it but I will have to study it more.
Regards
Phil
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