Problem with decnet mail on ultrix

[Grant Basham]

I have two nodes running ultrix 4.0, a 3200 and a 5000.  The 3200
receives decnet mail from a vms site.  The other node, oj, the 5000,
fails vms mail:
  $ mail nla0: oj::grant
  %MAIL-E-LOGLINK, error creating network link to node OJ
  -SYSTEM-F-LINKEXIT, network partner exited

Decnet mail from an ultrix site just hangs forever in que with:
   (Deferred: Remote MAIL object at oj not responding)

Best I can tell,  these nodes are setup the same.  sendmail.cf
is the same on both.  Decnet Object setup is identical:
  Object = mail11
  Number                             = 27
  File                               = /usr/etc/mail11dv3
  Default User                       = daemon
  Type                               = Sequenced Packet
  Accept                             = Deferred

The deamon account entry in /etc/passwd is identical on both nodes:
   daemon:*:1:1:Mr Background:/:

Image is the same on both:
  /usr/etc/mail11dv3:     mipsel demand paged executable - version 2.0

Any suggestions on  how to resolve this would be appreciated.
-- 
Grant at umigw.miami.edu  (Grant Basham)  RSMAS Computer Facility/Systems
(305)361-4026                          University of Miami