Sendmail hangs on DS5000/200PX

[Phillip J. Windley]

I'm having a problem with sendmail on a DS5000/200 running Ultrix 4.1.

Some message to the machine hang the sendmail process that's delivering
them.  The sendmail process starts like its going to deliver the message
and simply starts chewing up lots of CPU time (like its in a loop).  I've
looked at the sendmail.cf file (I'm using the standard one that comes with
Ultrix) and don't see anything abvious, but I'm not a sendmail expert.

I'll include the df, lf, qf, and xf files from the queue that sendmail
thinks its delivering at the end of this message.

Has anyone else seen this?  Is there a fix?  

Thanks.

--phil--

PS.  I had purposefully wanted this mail to bounce.  tet at cheetah is not a
valid address and cheetah sent it on to groucho.

-------------------------- dfAA05377------------------------------
   ----- Transcript of session follows -----
>>> RCPT To:<tet at groucho>
<<< 550 <tet at groucho>... User unknown
550 <tet at cheetah>... User unknown

   ----- Unsent message follows -----
Received: by cheetah.cs.uidaho.edu (AIX  2.1.2/3.14)
	id AA09666; Tue, 7 May 91 10:38:36 PDT
Received: by panther.cs.uidaho.edu (5.57/Ultrix3.0-C)
	id AA05373; Tue, 7 May 91 10:39:28 -0700
Message-Id: <9105071739.AA05373 at panther.cs.uidaho.edu>
To: tet at cheetah
Subject: test test
Date: Tue, 07 May 91 10:39:27 PDT
From: Phil Windley <windley at panther>


test

--------------------------- lfAA05377 ----------------------------
* empty *

--------------------------- qfAA05377 ----------------------------
P1835
T673637972
DdfAA05377
S<MAILER-DAEMON at cheetah.cs.uidaho.edu>
R<windley>
H?P?return-path: <MAILER-DAEMON at cheetah.cs.uidaho.edu>
H?R?received: by panther.cs.uidaho.edu (5.57/Ultrix3.0-C)
	id AA05377; Tue, 7 May 91 10:39:32 -0700
H?x?full-name: 
Hreceived: by cheetah.cs.uidaho.edu (AIX  2.1.2/3.14)
	id AA09667; Tue, 7 May 91 10:38:36 PDT
Hdate: Tue, 7 May 91 10:38:36 PDT
HFrom: MAILER-DAEMON at cheetah.cs.uidaho.edu (Mail Delivery Subsystem)
Hsubject: Returned mail: User unknown
Hmessage-id: <9105071738.AA09667 at cheetah.cs.uidaho.edu>
HTo: <windley<>>

--------------------------- xfAA05377 ----------------------------
<<< RCPT To:<windley>
<<< DATA

--
Phil Windley                          |  windley at cs.uidaho.edu
Assistant Professor		      |  windley at cheetah.cs.uidaho.edu
Department of Computer Science        |
University of Idaho                   |  Phone: 208.885.6501  
Moscow, ID 83843                      |  Fax:   208.885.6645