Seltsame E-Mails bei Bestellung und Anmeldung vom Server?

[electric-x]

Hallo Froum,

bei Anmeldung und Bestellung kommen immer seltsame E-Mails zurück. Und ich weiß nicht wo ich anfangen soll nach dem Fehler zu suchen.

Betreff: failure notice

Hi. This is the qmail-send program at ******
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.

<email@kunde***.de>:
194.8.194.*** does not like recipient.
Remote host said: 550 5.1.1 <email@kunde***.de>: Recipient address
rejected: user unknown
Giving up on 194.8.194.***.

--- Below this line is a copy of the message.
Return-Path: <email@shop***.de>
Received: (qmail 18721 invoked by uid 10025); 14 Mar 2008 10:14:03 +0100
To: email@kunde***.de
Subject: Bestellung Betreff
Date: Fri, 14 Mar 2008 10:14:03 +0100
From: "Bestellung Betreff" <email@shop***.de>
Reply-to: "Bestellung Betreff" <email@shop**.de>
Message-ID: <0c0c7c2438cc553be4d4de62bcaa050a@www.shop***.de >
X-Priority: 3
X-Mailer: PHPMailer [version 1.73]
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="b1_0c0c7c2438cc553be4d4de62bcaa050a"


--b1_0c0c7c2438cc553be4d4de62bcaa050a
Content-Type: text/plain; charset = "iso-8859-15"
Content-Transfer-Encoding: 8bit

Mail Text Bestellung/Anmeldung