Re: [gentoo-server] SPAM protection by requesting confirmation

[Homer Parker <hparker@gentoo.org>]

On Tue, 2008-09-23 at 22:25 +0300, Alex Efros wrote:

> Sorry for OT, but I wanna install spam-protection tool based on
> confirmation email request (somebody send me email, my tool delay that
> email and automatically reply requesting confirmation, he confirm, my tool
> receive that confirmation and: 1) add his email to while-list; 2) deliver
> his initial email to my mailbox). I'm aware about several such tools, but
> I'm not sure how they handle incoming emails from other robots - like mail
> lists, or some news subscriptions and notifications from websites.
> 
> I just don't wanna put myself in position like other people who spam
> maillists I read with senseless messages from their tools like
> autoresponders or so...
> 
> Can anybody recommend me tool which is able to correctly handle these cases?
> To be honest, I don't see a way to realize this feature... :(
> Ability to protect all accounts at our email domain is good to have, but
> personal-only tool is acceptable too. (I use qmail, if this is important.)

	Challenge Response sucks, don't do that... Google for more info.. 

-- 
Homer Parker <hparker@gentoo.org>