ksagle
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Can't send email after removing smart host
Hi,
On a clients server running SBS 2011, I am unable to send mail to external domains. Previously they were using a smarthost send connector. The stopped paying for the connector, so today email stopped sending. I was unaware that they had the send connector, but after seeing the address as the next hop in the message queue, they mentioned it.
I disabled using smart host on the send connector, and set it to use DNS instead. I also tried recreating the send connector.
I then checked the message queue, and the external domains showed up. However, they end up with error:
451 4.4.0 Primary target IP address responded with *.* Atempted failover to alternate host but did not succeed.
I ran the mail flow troubleshooter, and got no errors until the following on Remote Delivery Queue SMTP Commands analysis results:
Remote server **** failed the mail acceptance test. RCPT TO command: Respond = 554 5.7.1 <******@*****.com>: Relay access denied
I am unsure where to go from here.
Regards,
Kevin
On a clients server running SBS 2011, I am unable to send mail to external domains. Previously they were using a smarthost send connector. The stopped paying for the connector, so today email stopped sending. I was unaware that they had the send connector, but after seeing the address as the next hop in the message queue, they mentioned it.
I disabled using smart host on the send connector, and set it to use DNS instead. I also tried recreating the send connector.
I then checked the message queue, and the external domains showed up. However, they end up with error:
451 4.4.0 Primary target IP address responded with *.* Atempted failover to alternate host but did not succeed.
I ran the mail flow troubleshooter, and got no errors until the following on Remote Delivery Queue SMTP Commands analysis results:
Remote server **** failed the mail acceptance test. RCPT TO command: Respond = 554 5.7.1 <******@*****.com>: Relay access denied
I am unsure where to go from here.
Regards,
Kevin
Amit
Ask them to pay money and get back to production again. Setting up your own DNS server in Public Domain can be way costlier than using ISP smart host.
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Check this too
http://www.sbslinks.com/DNS_Smarthost.htm
http://www.sbslinks.com/DNS_Smarthost.htm
ASKER
Hi guys,
Thanks for the help. You were correct, port 25 was being blocked. Added an exception and all is well.
Regards,
Kevin
Thanks for the help. You were correct, port 25 was being blocked. Added an exception and all is well.
Regards,
Kevin