I kep getting these emails after I

[vallan]

I kep getting these emails after I have sent out an email but just from this user

Reporting-MTA: dns; dmz-mhub-e03.intesabci.it
Received-From-MTA: DNS; mid-2.inet.it
Arrival-Date: Fri, 20 Jun 2003 14:44:00 +0200

Final-Recipient: RFC822; ??.>>@??.??.AVP
Action: failed
Status: 5.3.0
Diagnostic-Code: X-Unix; 66
Last-Attempt-Date: Fri, 20 Jun 2003 14:44:00 +0200



and


Return-Path: <##.##@##.com>
Received: from mid-2.inet.it (mid-2.inet.it [?.?.?.?])
by dmz-mhub-e03.?.?.com (8.11.6/8.11.4) with SMTP id h5KCi0M17559
for <?.?@?.com>; Fri, 20 Jun 2003 14:44:00 +0200
Received: from [::ffff:?.?.?.?] by mid-2.inet.it via I-SMTP-4.4.4-442
id ::ffff:194.202.12.51+J3x6VmW1I2u; Fri, 20 Jun 2003 14:44:00 +0200
Content-Class: urn:content-classes:message
Received: from ?.?@?.com ([?.?.?.?) by ?.?com with Microsoft SMTPSVC(5.0.2195.5329); Fri, 20 Jun 2003 12:33:48 +0100
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
Received: by EXCHANGE with Internet Mail Service (?.?.?.?) id <21H0SJ9P>; Fri, 20 Jun 2003 12:32:56 +0100
Message-ID: <356FE99999DB9A4BAF7995391D45AA49877376@LNMAIL2.bcildn.com>
From: &quot;A.A&quot; <##.##@##.com>
To: <??.??.com>
Subject: FW: --------------------------------------------------------------
Date: Fri, 20 Jun 2003 12:34:47 +0100
MIME-Version: 1.0
X-Mailer: Internet Mail Service (?.?.?.?)
Content-Type: multipart/mixed;
boundary=&quot;----_=_NextPart_000_01C3371F.F45BDA00&quot;
X-OriginalArrivalTime: 20 Jun 2003 11:33:48.0796 (UTC) FILETIME=[D116EBC0:01C3371F]

What is wrong.