Stephen Farrell wrote: > > Dave Crocker wrote: >> Whether ADSP can reasonably extract some semantics is an entirely reasonable >> line of question. > > Right. And that's the basis on which Barry and I think this worth > discussing again.
Sorry, I should have said "a basis" above. Its been pointed out to me that Dave's concern is broader than just the above which is fair enough. S. > >> What we need to see is discussion and consensus that it can and does and >> that >> the benefits outweighs the costs. >> >> An nice example of a counter-argument is: >> >> Wietse Venema wrote: >> > The problem is that "valid email origin" is a subset of all the >> > names that resolve in the DNS. In other words, there are false >> > positives in the algorithm that continues when [any DNS] record >> > lookup succeeds. >> >> One interpretation of this point is that the presence of a DNS entry (that >> is, a >> 'failure' to get an NXDomain) might be meaningful, but the scope of its >> meaning >> is much broader than ADSP. > > I'm not following that. Can you give an example? Even if its partly > speculative, it'd help me understand your point. (And in this case, > I guess speculation as to future uses of DNS might be valid, since > the current absence of entries is what we're proposing to use.) > > Stephen. > > _______________________________________________ > NOTE WELL: This list operates according to > http://mipassoc.org/dkim/ietf-list-rules.html > _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
