I'm getting a bounce message saying "User unknown", however when I go to
delete the subscriber, Listserv says there's no such subscriber.  I've
run a QUERY using wildcards to search, just in case I misspelled the
address but all searches turn up negative.  How can I drop this "mystery
subscriber" who is apparently not subscribed?
 
I copy the bounce notice below.
 
-- Roger Burns   [log in to unmask]
 
 
---------- Forwarded message ----------
Date: Fri, 12 Nov 1993 19:33:36 -0500
From: BITNET list server at NIHLIST <[log in to unmask]>
To: Roger Burns <[log in to unmask]>
Subject: CFS-L: error report from VMS.CIS.PITT.EDU
 
The enclosed mail file,  found in the CFS-L reader and  shown under the spoolid
6891  in the  console log,  has been  identified as  a possible  delivery error
notice for the following reason: mail origin is listed in "Filter=" list header
keyword (or its default value for CFS-L).
 
------------------------- Message in error (62 lines) -------------------------
Received: from NIHLIST by LIST.NIH.GOV (Mailer R2.10 ptf000) with BSMTP id
 6890; Fri, 12 Nov 93 19:33:17 EST
Received: from VM2.CIS.PITT.EDU by LIST.NIH.GOV (IBM VM SMTP V2R2) with TCP;
   Fri, 12 Nov 93 19:33:09 EST
Received: from vms.cis.pitt.edu by vms.cis.pitt.edu (PMDF #12376) id
 <[log in to unmask]>; Fri, 12 Nov 1993 19:33 EST
Date: Fri, 12 Nov 1993 19:33 EST
From: PMDF Mail Server <[log in to unmask]>
Subject: Undeliverable mail: SMTP delivery failure
To: [log in to unmask], [log in to unmask]
Message-id: <[log in to unmask]>
X-Envelope-to: [log in to unmask]
 
The message could not be delivered to:
 
Addressee: [log in to unmask]
Reason: <[log in to unmask]>... User unknown
 
----------------------------------------
 
Received: from vms.cis.pitt.edu by vms.cis.pitt.edu (PMDF #12376) id
 <[log in to unmask]>; Fri, 12 Nov 1993 19:32 EST
Received: from list.nih.gov by vms.cis.pitt.edu (PMDF #12376) id
 <[log in to unmask]>; Fri, 12 Nov 1993 19:32 EST
Received: from LIST.NIH.GOV by LIST.NIH.GOV (IBM VM SMTP V2R2) with BSMTP id
 6887; Fri, 12 Nov 93 19:30:02 EST
Received: from LIST.NIH.GOV by LIST.NIH.GOV (Mailer R2.10 ptf000) with BSMTP id
 6883; Fri, 12 Nov 93 19:29:55 EST
Resent-date: Fri, 12 Nov 1993 19:32 EST
Date: Fri, 12 Nov 1993 19:15:46 -0500
From: Roger Burns <[log in to unmask]>
Subject: RE: Sexual Function.
In-reply-to: <[log in to unmask]>
Sender: Chronic Fatigue Syndrome discussion CFIDS/ME <[log in to unmask]>
Resent-to: [log in to unmask]
To: Multiple recipients of list CFS-L <[log in to unmask]>
Reply-to: Roger Burns <[log in to unmask]>
Resent-message-id: <[log in to unmask]>
Message-id: <[log in to unmask]>
X-Envelope-to: [log in to unmask]
X-VMS-To: IN%"[log in to unmask]"  "Multiple recipients of list CFS-L"
X-To:         Chronic Fatigue Syndrome discussion CFIDS/ME <[log in to unmask]>
X-cc:         [log in to unmask]
 
[ORIGINAL TEXT DELETED]