Hello Friends ,
Please tell How to make a captcha for a email forum.
Email Forum Help
10 days later
My personal experience using phpBB is that there are a bazillion spammers out there and they have cracked visual captcha (i.e., captcha that uses an image) and that question-and-answer captcha is the current temporary solution. This could be quite easy to implement -- just define a series of questions that require some thinking and unambiguous answers and you can avoid all the image creation and so on.
Another option would be to use the Akismet API, e.g.: https://github.com/achingbrain/php5-akismet
sneakyimp wrote:) and that question-and-answer captcha is the current temporary solution. This could be quite easy to implement -- just define a series of questions that require some thinking and unambiguous answers and you can avoid all the image creation and so on.
And for an example of this approach, have a look at the PHP manual: adding a user note is protected in this way, and its source code is available from a link at the bottom of the page.
10 days later
I hate recapthca forms, puts me off filling a form!
You could just try and write a smarter form to detect spam bots!
You could using filter_var($EMAIL, FILTER_VALIDATE_EMAIL)
You can try tricking spammers by putting hidden fields and if they are filled in you know it's a spammer.
most spammers on my website used this "[url]" and "[link]" so i filtered out those results.
Don't name your form fields with obivous words such as "email", "last name", "Subject"
There is a lot more you can do, but i have managed not to go down the route of recaptcha or anything like that, I like to make life easy for my customers.
It took me roughly two weeks to reduce the spam after i had learned how they were using the form.
I have a happy boss again and customers find it really easy to submit forms!
If you need more help show me your form and i can tell you what you can do to reduce spam bots filling it in