Mail non recu par certains destinataires

Bonjour,

Lors de nos mailing, on s’aperçoit que les destinataires chez certains fournisseurs de messagerie ne reçoivent pas les emails. (laposte.fr, sfr.Fr, neuf.Fr

Nous avons un retour de ce type.
Que dois je faire ?

Ps : J'ai modifié l adresse du destinataire.


This is the mail system at host mo179.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 smtpz4.laposte.net[160.92.124.66] said: 550
5.7.1 SPF permanent error, veuillez verifier votre entree SPF. Please
verify your SPF record. (in reply to end of DATA command)

quel est ton domaine?