Why are out of office mails accepted by receiver when they bypass postfix smart host?Exchange 2010 OWA send connector issueHotmail Senders receiving NDR : “550-Please turn on SMTP Authentication in your mail client…”Exchange 2010 - Send ConnectorsHow do I track a message in Exchange 2010 when used as a relay and no mailbox is used?postfix and exchange connectionExchange 2010: not receiving NDR when sending email using SMTP to none existing external mailboxRelay specific Exchange Mailbox to defined SMTP host“Relay Access Denied” error when trying to use Office 365 as mail relayHow do I get Postfix to run a script every time there is a outgoing delivery error?Add sender to my exchange out of office mails which are sent via postfix with an empty sender
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Why are out of office mails accepted by receiver when they bypass postfix smart host?
Exchange 2010 OWA send connector issueHotmail Senders receiving NDR : “550-Please turn on SMTP Authentication in your mail client…”Exchange 2010 - Send ConnectorsHow do I track a message in Exchange 2010 when used as a relay and no mailbox is used?postfix and exchange connectionExchange 2010: not receiving NDR when sending email using SMTP to none existing external mailboxRelay specific Exchange Mailbox to defined SMTP host“Relay Access Denied” error when trying to use Office 365 as mail relayHow do I get Postfix to run a script every time there is a outgoing delivery error?Add sender to my exchange out of office mails which are sent via postfix with an empty sender
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
With internal recipients everything works great. Exchange 2010 Out of office mails are sent and received. For external recipients, out of office mails are sent OK but they are not accepted by the external recipients :
said: 550 Requested action not taken: mailbox unavailable (in reply to
MAIL FROM command))
When I bypass the postfix smart host out of office mails are received by external recipients but when I go trough the postfix smart host it doesn't work.
Here is a diagram : Out of office mails are refused:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Postfix <- Exchange 2010
Out of office mails are accepted:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Exchange 2010
Do you know why postfix is interfering and preventing out of office mails to be refused (550 mailbox unavailable)?
Do you know if it is dangerous to go out directly without any smart host?
Thank you in advance
postfix exchange-2010 smarthost
asked May 21 at 8:37
PhilipiliPhilipili
1116
add a comment |
With internal recipients everything works great. Exchange 2010 Out of office mails are sent and received. For external recipients, out of office mails are sent OK but they are not accepted by the external recipients :
said: 550 Requested action not taken: mailbox unavailable (in reply to
MAIL FROM command))
When I bypass the postfix smart host out of office mails are received by external recipients but when I go trough the postfix smart host it doesn't work.
Here is a diagram : Out of office mails are refused:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Postfix <- Exchange 2010
Out of office mails are accepted:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Exchange 2010
Do you know why postfix is interfering and preventing out of office mails to be refused (550 mailbox unavailable)?
Do you know if it is dangerous to go out directly without any smart host?
Thank you in advance
postfix exchange-2010 smarthost
asked May 21 at 8:37
PhilipiliPhilipili
1116
According to your description, it's not an Exchange issue, you can contact the supplier of your postfix smart host to feedback your problem. In addition, you can safely go out directly without any smart host.
– joyceshen
May 22 at 8:39
Thank you. Do you have any idea why postfix prevent my Out Of Office mails from being accepted by Gmail, Hotmail, Yahoo etc.? Saddly, the supplier doesn't work here anymore. And I don't know why with the smart host it doesn't work. Secondly, if I by-pass the smart host for outgoing mails it doesn't work anymore for several mails: Error 1: temporarily deferred due to user complaints - 4.16.55.1 Error 2: Client host rejected: cannot find your reverse hostname
– Philipili
May 22 at 12:20
Have you checked the blacklist of your ip address? Also this case for your reference:community.spiceworks.com/topic/405712-client-host-rejected
– joyceshen
May 24 at 8:13
add a comment |
With internal recipients everything works great. Exchange 2010 Out of office mails are sent and received. For external recipients, out of office mails are sent OK but they are not accepted by the external recipients :
said: 550 Requested action not taken: mailbox unavailable (in reply to
MAIL FROM command))
When I bypass the postfix smart host out of office mails are received by external recipients but when I go trough the postfix smart host it doesn't work.
Here is a diagram : Out of office mails are refused:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Postfix <- Exchange 2010
Out of office mails are accepted:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Exchange 2010
Do you know why postfix is interfering and preventing out of office mails to be refused (550 mailbox unavailable)?
Do you know if it is dangerous to go out directly without any smart host?
Thank you in advance
postfix exchange-2010 smarthost
asked May 21 at 8:37
PhilipiliPhilipili
1116
With internal recipients everything works great. Exchange 2010 Out of office mails are sent and received. For external recipients, out of office mails are sent OK but they are not accepted by the external recipients :
said: 550 Requested action not taken: mailbox unavailable (in reply to
MAIL FROM command))
When I bypass the postfix smart host out of office mails are received by external recipients but when I go trough the postfix smart host it doesn't work.
Here is a diagram : Out of office mails are refused:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Postfix <- Exchange 2010
Out of office mails are accepted:
- Incomming mails: Internet -> Postfix -> Exchange 2010
- Outgoing mails: Internet <- Exchange 2010
Do you know why postfix is interfering and preventing out of office mails to be refused (550 mailbox unavailable)?
Do you know if it is dangerous to go out directly without any smart host?
Thank you in advance
postfix exchange-2010 smarthost
postfix exchange-2010 smarthost
asked May 21 at 8:37
PhilipiliPhilipili
1116
asked May 21 at 8:37
PhilipiliPhilipili
1116
asked May 21 at 8:37
PhilipiliPhilipili
1116
asked May 21 at 8:37
PhilipiliPhilipili
1116
asked May 21 at 8:37
PhilipiliPhilipili
1116
1116
According to your description, it's not an Exchange issue, you can contact the supplier of your postfix smart host to feedback your problem. In addition, you can safely go out directly without any smart host.
– joyceshen
May 22 at 8:39
Thank you. Do you have any idea why postfix prevent my Out Of Office mails from being accepted by Gmail, Hotmail, Yahoo etc.? Saddly, the supplier doesn't work here anymore. And I don't know why with the smart host it doesn't work. Secondly, if I by-pass the smart host for outgoing mails it doesn't work anymore for several mails: Error 1: temporarily deferred due to user complaints - 4.16.55.1 Error 2: Client host rejected: cannot find your reverse hostname
– Philipili
May 22 at 12:20
Have you checked the blacklist of your ip address? Also this case for your reference:community.spiceworks.com/topic/405712-client-host-rejected
– joyceshen
May 24 at 8:13
add a comment |
According to your description, it's not an Exchange issue, you can contact the supplier of your postfix smart host to feedback your problem. In addition, you can safely go out directly without any smart host.
– joyceshen
May 22 at 8:39
Thank you. Do you have any idea why postfix prevent my Out Of Office mails from being accepted by Gmail, Hotmail, Yahoo etc.? Saddly, the supplier doesn't work here anymore. And I don't know why with the smart host it doesn't work. Secondly, if I by-pass the smart host for outgoing mails it doesn't work anymore for several mails: Error 1: temporarily deferred due to user complaints - 4.16.55.1 Error 2: Client host rejected: cannot find your reverse hostname
– Philipili
May 22 at 12:20
Have you checked the blacklist of your ip address? Also this case for your reference:community.spiceworks.com/topic/405712-client-host-rejected
– joyceshen
May 24 at 8:13
According to your description, it's not an Exchange issue, you can contact the supplier of your postfix smart host to feedback your problem. In addition, you can safely go out directly without any smart host.
– joyceshen
May 22 at 8:39
According to your description, it's not an Exchange issue, you can contact the supplier of your postfix smart host to feedback your problem. In addition, you can safely go out directly without any smart host.
– joyceshen
May 22 at 8:39
Thank you. Do you have any idea why postfix prevent my Out Of Office mails from being accepted by Gmail, Hotmail, Yahoo etc.? Saddly, the supplier doesn't work here anymore. And I don't know why with the smart host it doesn't work. Secondly, if I by-pass the smart host for outgoing mails it doesn't work anymore for several mails: Error 1: temporarily deferred due to user complaints - 4.16.55.1 Error 2: Client host rejected: cannot find your reverse hostname
– Philipili
May 22 at 12:20
Thank you. Do you have any idea why postfix prevent my Out Of Office mails from being accepted by Gmail, Hotmail, Yahoo etc.? Saddly, the supplier doesn't work here anymore. And I don't know why with the smart host it doesn't work. Secondly, if I by-pass the smart host for outgoing mails it doesn't work anymore for several mails: Error 1: temporarily deferred due to user complaints - 4.16.55.1 Error 2: Client host rejected: cannot find your reverse hostname
– Philipili
May 22 at 12:20
Have you checked the blacklist of your ip address? Also this case for your reference:community.spiceworks.com/topic/405712-client-host-rejected
– joyceshen
May 24 at 8:13
Have you checked the blacklist of your ip address? Also this case for your reference:community.spiceworks.com/topic/405712-client-host-rejected
– joyceshen
May 24 at 8:13
add a comment |
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According to your description, it's not an Exchange issue, you can contact the supplier of your postfix smart host to feedback your problem. In addition, you can safely go out directly without any smart host.
– joyceshen
May 22 at 8:39
Thank you. Do you have any idea why postfix prevent my Out Of Office mails from being accepted by Gmail, Hotmail, Yahoo etc.? Saddly, the supplier doesn't work here anymore. And I don't know why with the smart host it doesn't work. Secondly, if I by-pass the smart host for outgoing mails it doesn't work anymore for several mails: Error 1: temporarily deferred due to user complaints - 4.16.55.1 Error 2: Client host rejected: cannot find your reverse hostname
– Philipili
May 22 at 12:20
Have you checked the blacklist of your ip address? Also this case for your reference:community.spiceworks.com/topic/405712-client-host-rejected
– joyceshen
May 24 at 8:13