Re: [Exim] AOL - SPF - and EXIM

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Auteur: Matthew Byng-Maddick
Date:  
À: 'Exim User's Mailing List'
Sujet: Re: [Exim] AOL - SPF - and EXIM
On Thu, Jun 17, 2004 at 10:49:18PM -0400, David Brodbeck wrote:
> The thing is, I don't really see the point of the reverse DNS check. It
> doesn't accomplish anything. Someone claimed earlier that it's a form of
> server authentication, but it isn't really, because whoever controls
> reverse DNS for that IP can stick whatever they want in there. Looking up
> the A record tells you a lot more.


And looking up both tells you even more.

google: tcpd paranoid "name does not match"

> for that netblock set that value. It's almost as easy to fake as an
> identd lookup, and those are widely regarded as useless these days. But


identd is only regarded as useless by those who misunderstand its true
purpose.

MBM

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Matthew Byng-Maddick          <mbm@???>           http://colondot.net/
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