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Re: [idn] additional comments from draft-ietf-idnra-00.txt
> > In todays DNS the case of letters are preserved,
> Well, yes, but the case that is "preserved" in a response is sometimes
> the case that was used in the request, sometimes the case that
> somebody else used in a different request, and sometimes the case that
> was originally used in the zone master file. Different labels in the
> response can "preserve" case from different sources. The current
> behaviour is really not very useful, and it might make sense to give
> up all pretense of preserving case.
Mostly a PTR record is returned with correct case. But you are right,
the standard is weak, it should require the original case to be returned.
So people can really get the IP to host names lookup return the
names as they want it to be written.