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RE: Appeal: Publication of draft-lyon-senderid-core-01 in conflictwith referenced draft-schlitt-spf-classic-02

2005-08-26 15:46:47
As has recently been pointed out on the namedroppers list, the dual
track RR and TXT approach does not work. It leads to ambiguities when
the records do not match - which they will inevitably dur to the DNS
protocol.

-----Original Message-----
From: ietf-bounces(_at_)ietf(_dot_)org 
[mailto:ietf-bounces(_at_)ietf(_dot_)org] On 
Behalf Of Julian Mehnle
Sent: Friday, August 26, 2005 5:21 PM
To: ietf(_at_)ietf(_dot_)org; MARID
Subject: Re: Appeal: Publication of 
draft-lyon-senderid-core-01 in conflictwith referenced 
draft-schlitt-spf-classic-02


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Hallam-Baker, Phillip wrote:
Which would at the same time provide an opportunity to 
address the one 
part of SPF/Sender-ID that does give me significant concern, the 
exclusive appropriation of the TXT record.

A prefixed record would be much less likely to collide with other 
records.

A proposal has been made to cut an new RR but as the group 
discovered 
50% of the legacy infrastructure does not support new RRs despite 
claims to the contrary. Support in this case has to be production 
quality, not the ability to coax particular bits out of a server in 
certain limited circumstances that no network admi is ever going to 
accept on a production server.

What about the new SPF RR type (99) recently assigned by IANA?

  $ named -v
  BIND 9.3.1
  $ grep TYPE99 /etc/bind/zones/net.mehnle
  @               IN      TYPE99  \# 15 0e763d73706631206d78202d616c6c

  $ dig -v
  DiG 9.3.1
  $ dig mehnle.net TYPE99 +sho
  \# 15 0E763D73706631206D78202D616C6C

  $ host -V
  host version 991529
  $ host -t 99 mehnle.net
  mehnle.net              99      # (     ; unknown type
          0E 76 3D 73 70 66 31 20 6D 78 20 2D 61 6C 6C    ; 
.v=spf1 mx -all
          )
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