Re: BATV, was forged bounces, was [Asrg] A CAPTCHA that automatically

[John Levine <asrg at johnlevine.com>]

>This is exactly the problem with SES and why I told them its not workable
>large-scale, although otherwise its good idea.
>
>BTW - the same is also true for BATV (in fact the technologies are really 
>identical except SES allows for public dns verification server and BATV 
>its all private).

BATV doesn't require the sending host to remember anything about
messages it's sent.  It uses signatures.

R's,
John

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