Re: [PHP] webform spam prevention

On Thu, 2013-04-04 at 19:29 +0100, Terry Ally (Gmail) wrote:

> I am running captcha but the problem that I am having is that fly-by-night
> SEO marketeers are using the form to send marketing messages anyway. We get
> so many spam messages that I put up in red letters on the form that we do
> not want cold-calling SEO marketing messages. Since that message there has
> been a significant reduction in emails from legitimate SEO companies.
> 
> However there is an upsurge in fly-by-night individuals who are all using
> Gmail addresses and originating in the USA. It seems as though someone is
> selling them a database of websites to contact.
> 
> I wish there was a way of dealing with these people who evidently cannot
> read. Is there a technological solution?
> 
> 
> 
> 
> On 4 April 2013 17:28, Maciek Sokolewicz <[email protected]> wrote:
> 
> > On 4-4-2013 14:27, tamouse mailing lists wrote:
> >
> >> On Apr 4, 2013 3:57 AM, "Ashley Sheridan" <[email protected]>
> >> wrote:
> >>
> >>>
> >>> One type I've seen (and use myself) which is gaining traction is that of
> >>>
> >> asking for a human type of response to a question, or have them perform a
> >> simple mathematical problem, where the numbers are replaced with something
> >> else.
> >>
> >>>
> >>>
> >> Those can be great. The sticky part seems to be i18n and common user
> >> experience to answer the question, but this seem much easier to work with
> >> then throwing something horrible at your users.
> >>
> >>
> > Still, questions like "Does the sun rise in the morning or evening?" or
> > "Is the sky usually blue or red?" should be answerable by pretty much any
> > human capable of understanding at least very basic things. I'm pretty sure
> > that even if you have a severely reduced mental capacity, you can still
> > answer these types of questions. And if you can't, you usually are in the
> > wrong place anyway.
> >
> > - Tul
> >
> > --
> > PHP General Mailing List (http://www.php.net/)
> > To unsubscribe, visit: http://www.php.net/unsub.php
> >
> >
> 
> 


They probably aren't using a paid for list but getting a list of contact
forms from a web search. I still maintain that asking some sort of
question that only a human could answer is best, and that doesn't mean a
tradition captcha like ReCaptcha. That's proved easier for bots to fill
than humans now!

Thanks,
Ash
http://www.ashleysheridan.co.uk