Mail delivery system error

I’m getting all these returned emails that I haven’t sent.

Example:

Hi. This is the qmail-send program at serenity.mindvox.com.
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.

giantgiant@phantom.com:
Sorry, no mailbox here by that name. (#5.1.1)

— Below this line is a copy of the message.

Return-Path: dmoore@citlink.net
Received: (qmail 29321 invoked from network); 6 Aug 2003 18:33:27 -0000
Received: from unknown (HELO 64.0.58.176) (218.242.124.54)
by 192.168.1.20 with SMTP; 6 Aug 2003 18:33:27 -0000
Received: from mg9r8.1wjmq6c.net [112.72.242.121] by 64.0.58.176 id 3QRsITX70u77; Thu, 07 Aug 2003 00:39:31 +0500
Message-ID: v-w42j--6-8$w$-tv8-$1@hp6xdlt4e
From: “” dmoore@citlink.net
To: giantgiant@phantom.com
Subject: ghostb@connriver.net v
Date: Thu, 07 Aug 03 00:39:31 GMT
X-Mailer: QUALCOMM Windows Eudora Version 5.1
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary=“E_F_FB__C…_53_84_8”
X-Priority: 3
X-MSMail-Priority: Normal

This is a multi-part message in MIME format.

–E_F_FB__C…_53_84_8
Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

<meta http-equiv=3D"content-type" content=3D"text/html;charset=3DISO-

I’m getting lots of these all seem to be different. How do I stop this from happening.

Thanks

Uh, is your Avast up to date? Please send an Email to me, it does not need to contain any message or Subject. Use the Email shown in my Profil (just click on my Nickname on the left side).

I got a few similar e-mails, too.
My guess is that somebody (who knows your e-mail address) is sending e-mails to non-existing recipients with your e-mail address given in the “From” field.
For example, it may be caused by a worm that spoofed your e-mail address from the victims address book and is trying to spread that way. In short, I don’t think you can do anything about it >:(