Elenco delle motivazioni di hard bounce
Ecco le molteplici ragioni che causano un HARD BOUNCE:
| Was not delivered to | This is a permanent error | Remote host said: 550 5.1.1 No such user | This is a permanent error; I’ve given up. Sorry it didn’t work out. |
| PERM_FAILURE: | User unknown | UNKNOWN_USER: No such user | Mailbox unavailable |
| Requested action not taken: mailbox unavailable | Action: failed | User unknown in virtual alias table | Invalid mailbox |
| Couldn’t find any host named | Mailbox unavailable | Invalid address | User unknown |
| This user doesn’t have a yahoo.com account | Permanent fatal errors | No mailbox here by that name | User not known |
| Remote host said: 553 | No such user | No such recipient | Unknown user |
| Mailbox not found | No such user here | Delivery to the following recipients failed | Unknown or illegal alias |
| Not listed in domino directory | Unrouteable address | Destination server rejected recipients | Unable to validate recipient |
| No such virtual user here | The recipient cannot be verified | Bad address | Recipient unknown |
| Mailbox is currently unavailable | User mailbox is inactive | Invalid User | Recipient rejected |
| Invalid recipient | Not our customer | Unknown account | This user doesn’t have a |
| No users here by that name | Account closed | User not found | This address no longer accepts mail |
| Does not like recipient | Delivery to the following recipient failed permanently | User Does Not Exist | The mailbox is not available on this system |
| Mailbox (.*) does not exist | Not a valid mailbox | Server doesn’t handle mail for that user | No such account |
| Unknown recipient | User invalid | User reject the mail | The following recipients are unknown |
| Name or service not known | I couldn’t find any host named | Message could not be delivered for \d+ days | I couldn’t find a mail exchanger or IP address |
| Address does not exist | Relaying denied | Access denied | 554 denied |
| They are not accepting mail from | Relaying not allowed | Not permitted to relay through this server | Sender verify failed |
| Although I\’m listed as a best-preference MX or A for that host | Mail server permanently rejected message | Bad address syntax | Delivery failed; will not continue trying |
| No DNS information was found | User account disabled | This account has been disabled or discontinued | User account is expired |
| User is inactive | Inactive user | Extended inactivity new mail is not currently being accepted | Sorry, I wasn’t able to establish an SMTP connection |
| Message refused | Permission denied | User mailbox is inactive | Mailbox temporarily disabled |
| Blocked address | Account inactive as unread | Account inactive | Account expired |
| User hasn’t entered during last | Account closed due to inactivity | This account is not allowed | Mailbox_currently_suspended |
| Mailbox disabled | Mailaddress is administratively disabled | Mailbox currently suspended | Account is not active |
| Recipient never logged onto | Is disabled | Account has been temporarily suspended | Deactivated mailbox |
| Disabled due to inactivity | Not an active address | Inactive on this domain | Status: 5.2.1 |
| Said: 550 5.2.1 | Account is locked | Account deactivated | Disabled mailbox |
| User mailbox is inactive | Mailaddress is administrativley disabled | Unavailable to take delivery of the message | 550 5.1.1 User unknown |
| Invalid mailbox | Mailbox unavailable | Invalid address | This user doesn’t have a yahoo.com account |
| Permanent fatal errors | No mailbox here by that name | User not known | Remote host said: 553 |
| Said: 553 sorry, | No such user | No such recipient | Unknown user |
| Mailbox not found | No such user here | Delivery to the following recipients failed | Unknown or illegal alias |
| Not listed in domino directory | Unrouteable address | Destination server rejected recipients | Unable to validate recipient |
| No such virtual user here | The recipient cannot be verified | Bad address | Recipient unknown |
| Mailbox is currently unavailable | Invalid User | Recipient rejected | Invalid recipient |
| Not our customer | Unknown account | This user doesn’t have a | No users here by that name |
| Account closed | User not found | This address no longer accepts mail | Does not like recipient |
| Delivery to the following recipient failed permanently | User Does Not Exist | The mailbox is not available on this system | does not exist |
| Not a valid mailbox | Server doesn’t handle mail for that user | No such account | Unknown recipient |
| User invalid | User reject the mail | The following recipients are unknown | User unknown in virtual mailbox |
| User unknown in virtual alias table | User is unknown | User unknown | Unrouteable address |
| Mailbox unavailable | This address does not receive mail | Recipient no longer on server | Retry timeout exceeded |
| Retry time not reached for any host after a long failure period | Unknown address or alias | > does not exist | Recipient address rejected |
| Recipient not allowed | Address rejected | Address invalid | Unknown local part |
| Unknown local-part | Mail receiving disabled | Bad destination email address | Deactivated due to abuse |
| No such address | User_unknown | Recipient not found | User unknown in local recipient table |
| This recipient e-mail address was not found | No valid recipients | This user doesn’t have a yahoo | Mailbox not available |
| Not a valid user | Unknown destination address | Unknown address error | Recipient\’s account is disabled |
| Unable to chdir to maildir | Undeliverable to the following | Invalid domain mailbox user | Permanent error in automatic homedir creation |
| Invalid or unknown virtual user | Your e-mail has not been delivered | Your email has not been delivered | Your mail has not been delivered |
| Not a valid recipient | Please check the recipients e-mail address | Email has changed | This address is no longer valid |
| Unknown email address | No longer in use | Not have a final email delivery point | Non esiste |
| No recipients | Permanent fatal delivery | Address is not valid | Unavailable mailbox |
| 550 5.1.1 | Status: 5.1.1 | Account does not exist | The recipient name is not recognized |
| Can’t create user output file | No such user here | There is no user by that name | No such mailbox |
| Not a recognised email account | Address is no longer active | This is a permanent error. The following address | Unable to find alias user |
| Sorry, no mailbox | Doesn’t have an account | Not a valid email account | I have now left |
| I am no longer with | Invalid final delivery user | No longer available | Unknown address |
| Isn’t in my list of allowed recipients | Recipients are invalid | Recipient is invalid | Mailbox is not valid |
| Invalid e-mail address | Doesn’t_have_a_yahoo | Not known at this site | Email name is not found |
| Address doesn’t exist | Destination addresses were unknown | No existe | Does not have an email |
| _does_not_exist_here | User unknown in virtual mailbox table | User is no longer available | Unknown user account |
| Addressee unknown | This Gmail user does not exist | 554 delivery error: This user doesn’t have | Name or service not known |
| I couldn’t find any host named | Message could not be delivered for \d+ days | I couldn’t find a mail exchanger or IP address | Address does not exist |
| No such domain at this location | An MX or SRV record indicated no SMTP service | I couldn’t find any host by that name | Domain does not exist; please check your spelling |
| Domain not used for mail | Domain must resolve | Unrouteable mail domain | No route to host |
| Host not found | Host or domain name not found | Illegal host/domain | Bad destination host |
| No matches to nameserver query | No such domain | Cannot resolve the IP address of the following domain | Relaying denied |
| Access denied | 554 denied | They are not accepting mail from | Relaying not allowed |
| Not permitted to relay through this server | Sender verify failed | Although I\’m listed as a best-preference MX or A for that host | Mail server permanently rejected message |
| Too many hops, this message is looping | Loop: too many hops | Relay not permitted | This mail server requires authentication when attempting to send to a non-local e-mail address. |
| Is currently not permitted to relay | Unable to relay for | Not a gateway | This system is not configured to relay mail |
| We do not relay | Relaying mail to | Relaying is prohibited | Cannot relay |
| Relaying disallowed | Authentication required for relay | 5.7.1 Unable to deliver to | Message could not be delivered |
| Dns loop | Bad address syntax | Domain missing or malformed | 550_Invalid_recipient |
| Nvalid Address | Not our customer | Bad destination mailbox address | |