email from SCO Unix (mmdf) to DECStation (Ultrix 4.0)

[Vic Rice]

My  network  at  work  includes  over 10 SCO Unix boxes and one
DECStation  5000  added  recently. We can email between the SCO
boxes  no  problem. We can email from the DECStation to the SCO
boxes  no  problem.  However,  sending  email from a SCO box to
the  DECStation  is a dismail failure. As far as the SCO system
is  concerned  the  mail  was  handled  properly. But, it never
arrives at the DECStation.

The  SCO  boxes  are  using  the  mmdf  as supplied by SCO. The
DECStation  is  using  sendmail. What gives ??? Is the crippled
mmdf   supplied   by  SCO  a  problem  ?  Is  there  some  mmdf
configuration  parameter  I  have  screwed up ? I can't seem to
find  any  error  output  to lead me in any direction, right or
wrong. 

I  hasten  to  add,  I  know  just  enough  about  mmdf  to  be
dangerous. And even less about sendmail.

-- 
Dr. Victor L. Rice
Litwin Process Automation