Have any of you seen the spam prevention system Brightmail uses. I found
it well thought-out, and is quite similar to what you folks are talking
about. If what you have not looked at it, I would recommend it, as it
may give this development some ideas.

www.brightmail.com

Adelante!!! - Eric


Russell Nelson escribi�:
> 
> [ I've been in India for the past twelve days, helping rediff.com get
> rid of sendmail.  Catching up on old mail. ]
> 
> Edward S. Marshall writes:
>  > On Thu, 21 Oct 1999, Russell Nelson wrote:
>  > > Is this of interest to anyone?  Is anyone doing it already?  It's not
>  > > a qmail-specific thing, although the code for the sender and receiver
>  > > would be.
>  >
>  > There's a slight problem here...how do you prevent someone from
>  > maliciously injecting bogus addresses into the list? Some form of
>  > authentication included in the message to the list?
> 
> It would be membership based.  Probably comparing the envelope sender
> and site would be sufficiently safe.
> 
>  > It seems to me that this is a system that would imply a great deal of
>  > trust.
> 
> The trust could be developed.
> 
>  > You'd also need some form of filtering to ensure that multiple copies of
>  > the same address never make it to the mailing list, so that all the
>  > recipients don't need to take on the work of processing them several
>  > times.
> 
> Yes, probably.
> 
>  > Why not just do it as an RBL-style list, so as to make the information
>  > more easily queried? Have the auto-submissions simply add the address to
>  > an RBL-style DNS zone, and you're all set. Anyone with an RBL-aware system
>  > (which is damn near anyone, these days) can then use your blacklist, and
>  > storage/expiration would be centralized.
> 
> Supposedly RSS is already doing that.
> 
> --
> -russ nelson <[EMAIL PROTECTED]>  http://russnelson.com
> Crynwr sells support for free software  | PGPok | Government schools are so
> 521 Pleasant Valley Rd. | +1 315 268 1925 voice | bad that any rank amateur
> Potsdam, NY 13676-3213  | +1 315 268 9201 FAX   | can outdo them. Homeschool!

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