Mail delivery failed: returning message to sender

[David]

Hi there,

I'm using MaxBulk Mailer to send about 9000 messages to our customers in France.
However, each time I'm sending those messages (Web Page format) I am receiving a ton of error messages named "Mail delivery failed: returning message to sender".
Last time it was about 800 error messages for 9000 recipients.

The messages are saying :

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:

And I have listed all the following errors for some different adress :
SPAM :
• @free
• @aliceadsl
SERVICE REFUSE :
• @laposte
CLIENT HOST REJECTED :
• @cegetel
INVALID RECIPIENT :
• @wanadoo
• @orange

Have you ever encounter this type of message ? Do you know how I can solve it ?

Thanks for your support

 

[stanbusk]

They are bounces, delivery errors. A list always produces bounces, soft bounces are recoverable (by the recipient server). Hard bounces are not.