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Mail delivery failed: returning message to sender


New Member
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)
And I have listed all the following errors for some different adress :
• @free
• @aliceadsl
• @laposte
• @cegetel
• @wanadoo
• @orange

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

Thanks for your support


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