[ietf-dkim] ISSUE: Revise wildcard discussion

[Eliot Lear]

Frank Ellermann wrote:
> Identifying TXT records by initial "tags" such as "v=spf1" is easy
> as long as the desired TXT record has an unambiguous version tag.
>
> The various ADSP drafts fail to provide the essential version tag
> for their identification, this is no general TXT wildcard problem.
>
> The general TXT problem is the *size* of all RXT records combined,
> and the various ADSP drafts refuse to share SPF records for their
> limited size needs.
>    

While I myself am leaning away from TXT records for other reasons, this 
is not one of them.  ADSP is a bit more safe because like DKIM it uses a 
_adsp label.  If you look up a TXT record with that label it makes less 
sense to expect anything other than ADSP.

Eliot