Mark Sheppard <[EMAIL PROTECTED]> wrote:
"[...] A spam bot that emailed random email address' on my domain (which
has a catch-all) with the same address as the return address [...]"
That is a very good point. You can email me at
[EMAIL PROTECTED]
---
Lachlan Hunt <[EMAIL PROTECTED]> wrote:
An excellent reply; lots of valuable info and suggestions!
Thanks.
----
Joshua Street <[EMAIL PROTECTED]> wrote:
"[...] How about checking for an in-domain referrer server-side? Anyone
know if spam spiders send referrers? You could suppress email addresses
unless there's a referrer from within the same domain [...]"
I did think of this, but as you know, it involves reloading the page or
moving to another page so as to get the right referrer, and of course they
can and do fake referrers so it's not fool proof. If I send to a page, may
as well send them to a contact form. But...
This gives me an idea:
What if... The user clicks an http link. It sends them to a PHP redirect
(location: the_referrer#link_id) sending them exactly back to where they
were using a fragment identifier, but to employ a script that matches that
specific redirect's referrer? And if it matches, proving they got there via
that redirect only, then the original link changes to a mailto link. With a
fast server and connection, this might not even be seen or noticed.
Any merit to this notion? If so, I may try to develop this one further.
There is a downside though, a loophole (possibly huge)... a 'bot hits the
index and bounces to the page with the email on it. Barrier removed.
---
Others wrote in:
More good stuff
Thank you all. There are some accessibility issues with some of the
potential techniques (good one Thierry). Always some barrier it seems :(
----
It seems it's back to square one. I will post an even bigger disclaimer on
that article so it isn't inadvertently used but some unsuspecting developer.
Thank you to everyone who helped me flesh this out. I have no regrets. It
was still a good learning experience even though I was less than successful
with it.
Sincerely,
Mike Cherim
http://green-beast.com/
http://accessites.org/
http://graybit.com/
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