I've been getting this same report, and having to add the subscribers back
to the list, periodically for a number of weeks now, all the auto-deletes
from CUNY.EDU.  Apparently, they're set to auto-delete upon receiving this
error message from Earthlink.com, copied below.  Am I wrong to think this is
an obvious misconfiguration at CUNY?  If Earthlink is rarely sending out
this erroneous "relaying denied" error, wouldn't it be better if there was
no auto-delete for it?

Received: from listserv.cuny.edu by WUVMD.Wustl.Edu (IBM VM SMTP V2R1) with
TCP;
   Wed, 27 Aug 97 14:05:28 CDT
Date:       Wed, 27 Aug 1997 15:06:48 -0400
Reply-to:   [log in to unmask]
From:       "LSMTP for Windows NT v1.0a" <[log in to unmask]>
Subject:    Undelivered mail
To:         [log in to unmask]
X-Report-Type: Nondelivery; boundary="> Error description:"

An error was detected while processing the enclosed message.  A list of
the affected recipient follows.   This list is in a special format that
allows software like LISTSERV to automatically take action on incorrect
addresses; you can safely ignore the numeric codes.

--> Error description:
Error-for:  [log in to unmask]
Error-Code: 3
Error-Text: Mailer EARTHLINK.NET said: "550 <[log in to unmask]>... Relaying
 Denied"

Error-for:  [log in to unmask]
Error-Code: 3
Error-Text: Mailer EARTHLINK.NET said: "550 <[log in to unmask]>...
 Relaying Denied"

 ============================================================================
Mike Holloway            |* On average, 9 people a day on the waiting list
[log in to unmask]  |  for a transplant die for lack of a donor.
_________________________|* The end-stage diseases treated by transplant
  do not recognize age, race, nationality or pocketbook.
* There is no justifiable reason to deny organ donation, but many myths and
  misunderstandings.
* Next of kin must allow donation.  Your family must know your wishes.
* Only a small fraction of the next of kin of potential donors allow
  donation to take place.
* In general, medical professionals do not recognize their obligation to
  support and promote donation.
Questions? See FAQ:
http://www.lib.ox.ac.uk/internet/news/faq/bit.listserv.transplant.html or
ftp://rtfm.mit.edu/pub/usenet/bit.listserv.transplant/
 =============================================================================