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[spf-discuss] Re: DKIM Reuse of SPF RR Type

2005-11-17 05:02:20
Julian Mehnle wrote:
 
DKIM should not be using the SPF RR type if the RR type is
called "SPF".

SPF and SSP both have "sender" and "policy", and both would
be TXT-clones.  The SSP part is short enough to fit within a
general "framework" set of records with the same RR type.

I *strongly* feel that the namespace scheme ("_spf.<domain>"
vs. "_policy._domainkey.<domain>" vs. just "<domain>")
schould be standardized across all protocols that make use
of such a common RR type.

If the FQDN is different you lose the one and only advantage
of a shared RR type:  Only one "real" DNS query for those
who need both.

For "real query" read "answer not already cached".  Bye, Frank


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