sendmail problems

[bfl250 at csc.anu.oz]

I am having problems with sendmail under Interactive's 386/ix 2.0.2.  As well
as receiving incoming mail it also appears to be attempting to SEND it.  It 
also seems to think the mail is being sent by the recipient. Below
are the results of mailing a test message from bfls at cain (a Sun workstation)
to mike at boopsie (the misbehaving 386 box). 

The recipient gets the first two messages below and the sender gets the third.
We are using sendmail 2.2 (dated 6-30-87).  Is there a more recent version or
are there patches to this version?  I don't think this weird behaviour is due
to an error in my sendmail.cf file as I use the same one on two Sun 
workstations on the same network without any problems.  

Any help with this problem will be greatly appreciated.
Thanks
Barbara La Scala
Statistics
Australian National University
bfls at cain.anu.oz.au
------------------------------------------------------------------------------

>From mike Tue Mar  6 14:52 GMT 1990
Received: by boopsie.anu.oz.au (5.51/smail2.2/06-30-87)
	id AA08597; Tue, 6 Mar 90 14:52:38 GMT
Received: by cain.anu.oz.au (4.0/SMI-4.0)
	id AA17001; Tue, 6 Mar 90 09:01:52 EST
Date: Tue, 6 Mar 90 09:01:52 EST
From: bfls at cain (Barbara La Scala)
Message-Id: <9003052301.AA17001 at cain.anu.oz.au>
To: mike at boopsie
Subject: Test

testing...
-------------------------------------------------------------------
>From mike Tue Mar  6 14:52 GMT 1990
Received: by boopsie.anu.oz.au (5.51/smail2.2/06-30-87)
	id AA08606; Tue, 6 Mar 90 09:52:42 GMT
Date: Tue, 6 Mar 90 09:52:42 GMT
From: MAILER-DAEMON at boopsie (Mail Delivery Subsystem)
Subject: Returned mail: unknown mailer error 8
Message-Id: <9003061452.AA08606 at boopsie.anu.oz.au>
To: mike at boopsie

   ----- Transcript of session follows -----
mail: Can't send to mike at boopsie
mail: Cannot return mail
554 mike... unknown mailer error 8

   ----- Unsent message follows -----
Received: by boopsie.anu.oz.au (5.51/smail2.2/06-30-87)
	id AA08604; Tue, 6 Mar 90 14:52:48 GMT
Date: 6 Mar 90 09:52:42 EST (Tue)
From: mike at boopsie
Message-Id: <9003060952.AA08602 at boopsie.UUCP>
To: mike at boopsie

***** UNDELIVERABLE MAIL sent to bfls at cain, being returned by boopsie!mike *****
mail: Error # 8 'Invalid recipient' encountered on system boopsie

Received: by boopsie.anu.oz.au (5.51/smail2.2/06-30-87)
	id AA08597; Tue, 6 Mar 90 14:52:38 GMT
Received: by cain.anu.oz.au (4.0/SMI-4.0)
	id AA17001; Tue, 6 Mar 90 09:01:52 EST
Date: Tue, 6 Mar 90 09:01:52 EST
From: bfls at cain (Barbara La Scala)
Message-Id: <9003052301.AA17001 at cain.anu.oz.au>
To: mike at boopsie
Subject: Test

testing...

---------------------------------------------------------------------------

>From MAILER-DAEMON at boopsie Tue Mar  6 09:02:14 1990
Received: from boopsie.anu.oz.au by cain.anu.oz.au (4.0/SMI-4.0)
	id AA17005; Tue, 6 Mar 90 09:02:13 EST
Return-Path: <MAILER-DAEMON at boopsie>
Received: by boopsie.anu.oz.au (5.51/smail2.2/06-30-87)
	id AA08599; Tue, 6 Mar 90 14:52:38 GMT
Date: Tue, 6 Mar 90 14:52:38 GMT
From: MAILER-DAEMON at boopsie (Mail Delivery Subsystem)
Subject: Returned mail: unknown mailer error 8
Message-Id: <9003061452.AA08599 at boopsie.anu.oz.au>
To: <bfls at cain>
Status: R

   ----- Transcript of session follows -----
mail: Can't send to bfls at cain
mail: Return to mike
554 <mike at boopsie>... unknown mailer error 8

   ----- Unsent message follows -----
Received: by boopsie.anu.oz.au (5.51/smail2.2/06-30-87)
	id AA08597; Tue, 6 Mar 90 14:52:38 GMT
Received: by cain.anu.oz.au (4.0/SMI-4.0)
	id AA17001; Tue, 6 Mar 90 09:01:52 EST
Date: Tue, 6 Mar 90 09:01:52 EST
From: bfls at cain (Barbara La Scala)
Message-Id: <9003052301.AA17001 at cain.anu.oz.au>
To: mike at boopsie
Subject: Test

testing...