Now let me preface this by saying that I am relatively new to the networking/admin area, so please bear with me here....anyhow, one of my users here has received three emails stating the follow (IP addresses have been changed of course and hopefully all other info)

The XXXXXX's are not from the same domain my user is sending email to

-----Original Message-----
From: MAILER-DAEMON@xxxxxxxx.net
[mailto:MAILER-DAEMON@xxxxxxxx.net]
Sent: Friday, May 21, 2004 1:38 PM
To: xxxxxxxx (NOTE:This was my user)
Subject: failure notice


Hi. This is the qmail-send program at xxxxxxxx.net.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<original_person_this_was_to@xxxxxxxx.com>:
vdeliver: Delivery failed due to system quota violation

--- Below this line is a copy of the message.

Return-Path: <my_user@mydomain.com>
Received: (qmail 2400 invoked from network); 21 May 2004 17:37:57 -0000
Received: from unknown (HELO my_exchange_Server@mydomain.com) (my ip here)
by xxxxxxxxx.net with SMTP; 21 May 2004 17:37:57 -0000
X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0
content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Subject: Subject was here
Date: Fri, 21 May 2004 13:37:58 -0400
Message-ID: <D2A11B2AC67D4549A9ED7BA90C8ED130807537@myexchangeserver>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
Thread-Topic: ORIGINAL SUBJECT LINE WAS HERE
Thread-Index: AcQ/WlrzAT2SlYagR6CviTi+mOPSWA==
From: "my_user" <my_user@mydomain.com>
To: <orginalRecipient@hisdomain.com>
Cc: "my_user" <myusername@mydomain.com>
--------------------------------------------------------------------------------------------------------

I'm sure its a dumb question, but I don't know the answer...so is this something legit that the receiver's email server actually returned or is it crap ? And if its crap, what exactly does it mean is ocurring ?

Any and all help is appreciated....

Thank you,
Murph