Pb envoi email de yahoo à free ou aliceadsl

Bonjour,

Depuis janvier 2011, je ne peux plus envoyer de mail à des gens qui ont une adresse sur free, aliceadsl, libertysurf...: le mail me revient : que puis je faire ? cela fait 15 ans que j'utilise yahoo et je n'ai jamais eu de pb avant !
je ne sais plus quoi faire

Voici ce que je reçois :

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

<xxxxxxxxx@free.fr>: 
Remote host said: 550 Too many spams from your IP (98.139.212.180), please visit https://postmaster.free.fr/ [RCPT_TO] 

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

Received: from [98.139.212.151] by nm21.bullet.mail.bf1.yahoo.com with NNFMP; 12 Apr 2011 19:24:59 -0000 
Received: from [98.139.212.220] by tm8.bullet.mail.bf1.yahoo.com with NNFMP; 12 Apr 2011 19:24:59 -0000 
Received: from [127.0.0.1] by omp1029.mail.bf1.yahoo.com with NNFMP; 12 Apr 2011 19:24:59 -0000 
X-Yahoo-Newman-Property: ymail-3 
X-Yahoo-Newman-Id: 122844.74656.bm@omp1029.mail.bf1.yahoo.com 
Received: (qmail 84679 invoked by uid 60001); 12 Apr 2011 19:24:59 -0000 
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1302636298; bh=DDSmPiVbEDaUbBS1o2JJ6o+k9p6cgTDWxvRaQIyuJ+Y=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=qGTuno+Ds/USfjalyhXYAljSjoIhQXKPtJoPOTSpHvj7X6wvYdOrlDUqN4U1KM4kmg9XLN7FPhTkmL5Ss5uVObltin5j6Rea27W1RnsV3F6zvKqkyTujzEeXcNrnQrWsqq3i7XH2nMaGpjXFoS99lV8iBJYkO7sckcgSvCDJqdw= 
DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; 
  s=s1024; d=yahoo.com; 
  h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; 

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