What is going on here?

[TO1SITTLER@APSICC.APS.EDU (Kragen Sittler)]

From:	SMTP%"Postmaster" 21-JUN-1993 22:58:06.38
To:	<TO1SITTLER>
CC:	
Subj:	Undeliverable Mail

Date:     Mon, 21 Jun 1993 22:57:59 -0600 (MDT)
From:     Postmaster@APSICC.APS.EDU
Subject:  Undeliverable Mail
To:       <TO1SITTLER>

Bad address -- <cdohner@indirect.com>
Error -- Address refused by receiver: <cdohner@indirect.com> (550 <cdohner@indirect.com>... User unknown)

Start of returned message

  Date:    Mon, 21 Jun 1993 22:57:54 -0600 (MDT)
  From:    TO1SITTLER@APSICC.APS.EDU (Kragen Sittler)
  Message-Id: <930621225754.d46@APSICC.APS.EDU>
  Subject: What?
  To:      cdohner@indirect.com
  X-Vmsmail-To: SMTP%"cdohner@indirect.com"
  
  
  
  From:	SMTP%"cypherpunks-request@toad.com" 21-JUN-1993 15:27:12.37
  To:	TO1SITTLER
  CC:	
  Subj:	
  
  Date: Mon, 21 Jun 93 10:56:26 MST
  From: cdodhner@indirect.com (Christian D. Odhner)
  Message-Id: <9306211756.AA03344@indirect.com>
  Content-Type: text
  Content-Length: 123
  Apparently-To: cypherpunks@toad.com
  
  Just checking out a "patently false rumor" I heard about... <g> Yeah I'll bite.
  Drop me a note or not...   -Happy Hunting.
  
  
  What are you talking about?

End of returned message