🚀 go-pugleaf

les@chinet.chi.il.us writes:
   It makes sense to me to make most uucp sites
   subdomains of their internet forwarder so that wild-card MX's 
   can allow them to come and go without bothering anyone but the
   forwarder.

I think you misunderstand the administrative intent of MX RRs.  By
providing service to something.org, I am explicitly stating that I
provide a service to someone other than my own organization.
MorningStar.COM is not part of Ohio State, but I MX for them.  There
is no reason why Morning Star Technologies should be considered to be
affiliated with OSU.  Hence, a separate domain.

Even more so, for private, single machines, I really don't want them
to be considered part of my organization.  I do MX service for
galaxia.newport.ri.us and a few related systems; they are by no means
part of OSU and I don't intend to have them identified as such.

Just for grins, imagine one of the sites that have seriously
embarrassed themselves on the networks having been identified as a
subdomain of the Internet entity which feeds them.  I rather suspect
that the feed site would not take too kindly to such a suggestion.