Re: New DNS record issue.

Hallam-Baker, Phillip wrote:

> In effect what you are saying here is that SPF is going to be so important
> that it can in effect claim TXT for exclusive use.
No-one's claiming that, AFAICS. The v=spf# string neatly takes the 
mimimum slice of TXT that it can work with, leaving it otherwise free 
for its current uses.
If anyone's yet seen even a partial collision with TXT records starting 
with something approximating v=spf, please point it out.
Once SPF takes off we can get its own record type, but until it does, 
that won't happen - we might as well ask for a specific record type for 
"domain owner's geek code".
Beside which, of course, TXT works. _spf doesn't (or at least when I 
asked before how to put an underscore into a record name in BIND, no-one 
could answer).
Meng added: >>The way I see it, the TXT record has been hidden away for 
safekeeping
> > almost since the dawn of the age of DNS.  Now an enemy has 
> > appeared that
> > is worthy of this weapon.  Let us use it!  This was the moment it has
> > waited for, during the long years it slumbered under the 
> > mountain.  Er.
> > Yeah.  That was a really good movie.
You think you've been overdoing it a bit recently? Without casting 
further aspersions on your personal hobbits, that does seem to be fairly 
true - I've yet to see, while searching for TXT "v=spf" records, a TXT 
record of any other usage.
> What I am saying here is lets use this weapon but take a few precautions so
> that we don't end up getting hit by the backfire. Remember that we also want
> to be able to use the TXT record to do other stuff ourselves to slay the
> spam dragon:
>
> MTAMark         - This IP address has these properties.
> Receiver Info	- I understand SPF and also accept hashcash 
> 			and domain keys as message authentication
> mechanisms.
> IPSec                   - I do IPSec, here is my key
Can you expand on that (or give me some pointers to look elsewhere) 
purely for my curiosity?
        TIA,
                Wechsler


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