Re: [Exim] Re: traceability of e-mail vs. stupid DNS tricks.…

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著者: Exim Users Mailing List
日付:  
To: Steinar Bang
CC: exim-users
題目: Re: [Exim] Re: traceability of e-mail vs. stupid DNS tricks....
[ On Friday, July 18, 2003 at 10:53:27 (+0200), Steinar Bang wrote: ]
> Subject: [Exim] Re: traceability of e-mail vs. stupid DNS tricks....
>
> >>>>> "Greg A. Woods" <woods@???>:
>
> > [ On Thursday, May 8, 2003 at 16:20:27 (+0100), Tony Finch wrote: ]
>
> >> Digression: The anti-spam research group has been arguing a lot
> >> about improving the traceability of email. One of their suggestions
> >> is to add an RR type to the DNS similar to MX records but for email
> >> emitters rather than receivers. Email from a machine that isn't
> >> listed as one of the return path's domain's email emitters is
> >> therefore obviously forged.
>
> [snip!]
> > Those "anti-spam research" guys really don't have a clue what
> > they're talking about when it comes to SMTP, DNS, and basic
> > networking, and are only grasping at the few straws they think they
> > can see (which only demonstrates how desparate they are).
>
> Why is the above mentioned approach so bad?


That's the wrong first question to ask.

The first question that needs asking is: How is it good?

There have been no good answers to that first question -- only flailing
attempts to grasp at thin air.

--
                        Greg A. Woods


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