abuse@ovh.net does not accept e-mails

Dear forum members,
Dear Admins,

I would like to send a message to the OVH European Abuse Team and/or the OVH European Head Office.
I have tried to send my message to the abuse@ovh.net e-mail address several times, but I have repeatedly received a notification on failed delivery. This is part of the message notifying on failed delivery:

"This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

abuse@ovh.net
retry timeout exceeded"

If you wish I can upload the full header.

It seems that some messages are not delivered to abuse@ovh.net. What do you recommend, how can I contact the European Abuse Department, or the European Head Office?

Your advice is highly appreciated.

Best regards,
Zoltan