Messages intempestifs reçus sur yahoo

Bonjour,

Depuis une semaine, j'ai constamment dans ma boite de réception un message Failure Notice alors que je n'ai pas envoyé de mail.
Pour info je suis sur yahoo.
J'ai l'impression que ma boite envoie des messages tout seul à des contacts qui ne sont pas dans ma liste.
Quelqu'un peut-il m'aider à résoudre ce problème?

Merci par avance

Cordialement

yorent

Pour exemple voici le type de message que je reçois:

De :
"MAILER-DAEMON@nm18.bullet.mail.ne1.yahoo.com" <MAILER-DAEMON@nm18.bullet.mail.ne1.yahoo.com>

Sorry, we were unable to deliver your message to the following address.

<xielili@yahoo.com.cn>:
Remote host said: 554 delivery error: dd This user doesn't have a yahoo.com.cn account (xielili@yahoo.com.cn) [-5] - mta1009.mail.cnb.yahoo.com [BODY]

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

Received: from [98.138.90.48] by nm18.bullet.mail.ne1.yahoo.com with NNFMP; 18 Jul 2011 15:38:08 -0000
Received: from [98.138.84.46] by tm1.bullet.mail.ne1.yahoo.com with NNFMP; 18 Jul 2011 15:38:08 -0000
Received: from [127.0.0.1] by smtp114.mail.ne1.yahoo.com with NNFMP; 18 Jul 2011 15:38:08 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.fr; s=s1024; t=1311003488; bh=hkUBUgvDh/GmbeGGIOxe4SnReStVWgnpT5iL4yGyMZo=; h=X-Yahoo-Newman-Id:Message-ID:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:X-mailer:From:Subject:To:Content-Type:Date; b=rstpdsTCnC2jqHK71SK0+hp3ok+BVh7WwON27yfL22oqdE1L+BHajfH0q4jUNuXOuyq17JVDXfxulcelriiWNiU21bN818uLDbPxLxwJl7xN4i/tGzkf6QnMFjp5yt0RQ4TZZbhUKyAdZgArBInApWiDgNnJCA/BU5JcHmo/7R8=
X-Yahoo-Newman-Id: 728186.90779.bm@smtp114.mail.ne1.yahoo.com
Message-ID: <728186.90779.bm@smtp114.mail.ne1.yahoo.com>
Received: from PC2002012410wyn (yorent@115.173.42.196 with login)
by smtp114.mail.ne1.yahoo.com with SMTP; 18 Jul 2011 08:38:07 -0700 PDT
X-Yahoo-SMTP: cjd3wEeswBAaFTebHWwyCfDjLQ--
X-YMail-OSG: BexEeesVM1k5RKmJEDPBvhh70farJWkpDJCv5R2LfAWrUw4
aR9ocWsGmw1JJ6SLA_aG9OUCkJ_UkpWdcxNzQE37FN2zQKt0epi3FtE2vaLR
qxol2gpYoHs5d4reUuEafd4X8562.v0XcKSPM1OEDHKjsBXLqBKz2fPHD.Kl
8mpxuN2IJKPjzr90f.eK01vMrX0Up4Oi7d613I5.mmKFWyy5yuxeDl4Qgs95
SPli0fJvttPWdqRhGvke1ICr9FuVHfltxg311L5YnNcqqwnN6X5DYe3qJuHC
k9cdqYmtPVbzKr_yENIAscsekg7PAQXlUXlF6An22Etio11bdyXei3XozYIz
msqvu8.QpEK5UgiuMd3wGvvVCc1.WXEKjJgM.7yABzeY_lYu6Yw--
X-Yahoo-Newman-Property: ymail-3
X-mailer: Foxmail 6, 15, 201, 22 [cn]
From: "yorent" <yorent@yahoo.fr>
Subject: =?GB2312?B?y7DGsbT6v6qjujEzNjYwNzg1MjY2zfXJ+qGj?=
To: 459417111@qq.com
Content-Type: text/html
Date: Mon, 18 Jul 2011 23:38:07 +0800

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