Per l'area geo ricorda che ci sono i nodi.

per gli errori ti posto questo reportino di bounced su un invio di 72000 mail

Bounced Mail: 6569 di cui 4936 con errori codificati

Codice Descrizione Ricorrenze
550 User unknown 2815
554 This account has been disabled or discontinued 948
553 sorry, that domain isn't in my list of allowed rcpthosts 103
552 Mailbox disk quota exceeded 333
544 Unable to route 17
512 I couldn't find any host named.... 437
511 Bad destination mailbox address 76
501 bad address 73
500 Other undefined Status 6
530 Other or undefined mail system status 1
521 Mailbox disabled, not accepting messages 28
522 Mailbox full 7
558 3
571 Delivery not authorized, message refused 3
421 Mailbox disabled, not accepting messages 1
441 No answer from host 27
450 User unknown 4
443 Directory server failure 29
451 Invalid command 11
442 Bad connection 10
452 Mailbox disk quota exceeded 4