[Mailman-Users] bots subscribing to lists via web forms to avoidmember-only restrictions
brad at shub-internet.org
Thu Jan 17 03:42:05 CET 2008
On 1/16/08, LuKreme wrote:
>>> Are there plans to enhance the web subscription form with a type of
>>> captcha, or other technique to discourage bots?
>> There is no current plan.
> There really should be.
CAPTCHAs don't work. The best mechanism I've found so far that does
work is to moderate (or discard or reject) postings from
non-subscribers, and to moderate new subscribers by default. Once
they prove they are human beings and capable posting reasonably
on-topic messages to the list, you can clear their moderation bit.
Nothing else I've seen actually works.
Brad Knowles <brad at shub-internet.org>
LinkedIn Profile: <http://tinyurl.com/y8kpxu>
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