Bonjour,
J'envoi régulièrement des emails vers des adresses dans des collèges et lycées (pas d'envois massifs, juste des échanges business). Ce sont des destinataires de type dupont@ac-nice.fr
Une bonne partie de ces emails me reviennent en erreur avec objet "Undelivered mail returned to sender" et contenu ci dessous par exemple :
> This is the mail system at host mo529.mail-out.ovh.net.
> I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.
> For further assistance, please send mail to postmaster.
> If you do so, please include this problem report. You can delete your own text from the attached returned message.
> _ The mail system_
> : host mx1.ac-nice.fr[194.167.84.123] said:
> _ 550 Service unavailable; Client Host [178.32.125.2] blocked using Trend_
> _ Micro RBL+. Please see_
> _ http://www.mail-abuse.com/cgi-bin/lookup?ip_address=178.32.125.2 (in reply_
> _ to RCPT TO command)_
Donc j'ai envoyé une requête à "mail-abuse.org" et voici leur réponse :
> Hello,
> Thank you for contacting us about this IP address on RBL.
> The IP was listed because we received spam coming from this IP address and
> _because no action was taken when we reported this to your ISP. _
> It may be a spam source, a spam support service, a multi-hop (multiple IP) open relay, or a compromised host.
> Please contact your ISP or mail administrator, and have them contact us for removal as we need those who have a direct access to the netblock to fix the problem.
> If you are end-users using a shared IP address you will need to contact your ISP/ administrator and if you have further questions, you may contact them directly regarding the status of this IP address. Thank you.
> Kind regards,
> Ottom Machina
> Spam Investigations Team
> Trend Micro Inc.
Que dois je faire svp ?
Merci d'avance 
Sniff, pas de réponse…
Bonjour,
Il faut voir avec le support OVH.
Cordialement, janus57