Sendmail Problem

[jack at linus.claremont.edu]

Hi.

I have a really weird error (or so it seems to me) in sendmail that I have not
been able to figure out and I was wondering if anyone might be able to help me
out.  I am running Ultrix 3.1 on a DECStation 3100.  Basically the problem is
this.

You can send mail to root and root can send mail to any user.  But user A
cannot send mail to user B (or even to A for that matter).  Any user can send
mail from the DECStation to another machine but no mail can be sent to it (the
mail just disappears).  The syslog looks something like this:

Jan 23 15:31:30 LOCALHOST: 6788 sendmail: AA06788: from=jack, size=39, class=0
Jan 23 15:31:31 LOCALHOST: 6790 sendmail: AA06788: to=fdump,jack,
delay=00:00:02, stat=unknown mailer error 255
Jan 23 15:31:31 LOCALHOST: 6790 sendmail: AA06790:
message-id=<9101232331.AA06790 at fenris.claremont.edu>
Jan 23 15:31:31 LOCALHOST: 6790 sendmail: AA06790: from=MAILER-DAEMON, size=0,
class=0 Jan 23 15:31:32 LOCALHOST: 6794 sendmail: AA06790: to=jack,
delay=00:00:01, stat=unknown mailer error 255

Any ideas?  Any help would be most appreciate.

---Jack

Jack Stewart        		Jack at Hmcvax 		  (Bitnet)
User Support Coordinator,       jack at hmcvax.claremont.edu (Internet)
Harvey Mudd College,            jack at 134.173.4.32         (also Internet)
Claremont, Ca. 91711            714-621-8006