Reporting-MTA: dns; smtp4.marseille.fr Final-Recipient: rfc822;xxxxxxxxx@xxxxxxxxx.xx Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [213.32.12.45] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-'5.1.1 : Recipient address rejected: mailbox does not exist' (delivery attempts: 0)