🚀 go-pugleaf

The host UK.AC.OX.PH is registered in the NRS, and users here (UK.AC.OX.PRG)
have been able to send mail to addresses of the form USER@PH, because of the 
mapping
        ph      ph.ox.ac.uk
in one of our domain std files.

We've just added the top domain ph (derived from UKC's top domains), and
sendmail now decides (in ruleset 10) that the address USER@PH is already fully
qualified, so later fails with "Host PH unknown".

There doesn't seem to be any way to override this from the domain and channel
tables -- does anyone have any suggestions?  There's a similar problem with
USER@MX which presumably should go to Middlesex, but doesn't because of
the top domain entry for Mexico.  

There are another thirteen UK.AC hosts which have a top-level domain as the 
last field of their NRS-ordered name, so perhaps someone else has already met 
this locally.

-- Malcolm Harper