Gandi.net Groups

reçu ce jour vers un domaine hebergé chez Gandi, cela fonctionnait
bien ce matin
une explication?

This is the Postfix program at host smtp3-g19.free.fr.

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 Postfix program

<ncasas@samarcande.com>: host spool.mail.gandi.net[217.70.184.6] said:
550
    5.7.1 <ncasas@samarcande.com>: Recipient address rejected:
backscatter on
    None (in reply to RCPT TO command)