I forward you the mail received as response to one simple command release:
Start of msg:
====================

An error occurred while processing  file 0001 from [log in to unmask]:
"Mail
message sent to the LISTSERV address contains invalid RFC822 fields and
could
not be parsed successfully".

RFC822 parser messages follow:

<W> Invalid RFC822 field - "RELEASE ". Rest of header flushed.

------------------- Message causing the problem (22
lines) --------------------
Return-Path: <[log in to unmask]>
Received: from 0e0443 ([127.0.0.1]) by cf-izfe.gipuzkoa.net
          (Netscape Messaging Server 4.15) with SMTP id GYPTIA00.SCU for
          <[log in to unmask]>; Thu, 4 Jul 2002 10:13:22 +0200
From: "Angel Anton" <[log in to unmask]>
To: <[log in to unmask]>
Subject: release
Date: Thu, 4 Jul 2002 10:16:16 +0200
Message-ID: <[log in to unmask]>
MIME-Version: 1.0
Content-Type: text/plain;
        charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-Priority: 3 (Normal)
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0
Disposition-Notification-To: "Angel Anton" <[log in to unmask]>
Importance: Normal
X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200

RELEASE
=======================================
End of msg

> Angel Antón
> IZFE. S.A.
> Plaza de Pinares, 1-3
> Donostia 20001
>
> Tlf.: +34 943.482.869/811 , Fax: +34 943.321.023
> E-Mail : [log in to unmask]
>


> -----Mensaje original-----
> De: LISTSERV give-and-take forum
> [mailto:[log in to unmask]]En nombre de Jacob Haller
> Enviado el: miércoles 3 de julio de 2002 17:31
> Para: [log in to unmask]
> Asunto: Re: Configuring Listserv for Netscape Messaging Server
>
>
> >Hello,
> >Does anyone use Listserv with Netscape Messaging Server?
> >I would like to know how I must configure Listserv to use
> Netscape Messaging
> >Server as mail program.
> >I configured the program delivery option when I defined the
> mail account for
> >listserv but when I send a mail to this account I get the
> follwing msg.:
> >
> >  28 Jun 2002 12:51:10 Processing file 0009 from [log in to unmask]
> >>  (LSV82I) <W> Invalid RFC822 field - "release  ". Rest of
> header flushed.
> >>  28 Jun 2002 12:51:10 Sent information mail to [log in to unmask]
> >>  28 Jun 2002 12:51:10 Error processing file (0009) from
> >[log in to unmask]:
> >>  -> Mail message sent to the LISTSERV address contains
> invalid RFC822
> >fields
> >>  and could not be parsed successfull
> >  > y.
>
> I don't know anything about Netscape Messaging Server, but the above
> indicates that LISTSERV is sending a message to [log in to unmask]
> in response to the message it received.  Are you receiving this
> message?  If so, what does it say?
>
> Thanks,
> --
> Jacob Haller, Technical Support, L-Soft international, Inc
>   LISTSERV (R) is a registered trademark of L-Soft.
>    Support is available 9:00-18:00 ET, Monday-Friday
>     except on the following holidays:
>      http://www.lsoft.com/products/default.asp?item=holidays
>