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#1 NerdGuy85 OFFLINE  

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Posted 29 March 2020 - 02:51 PM

I've changed the email delivery settings for a user on my server and when I perform a test I'm seeing this weird error in the log.

 

2020-03-29 14:27:27.063 Error App: Error sending email: System.Net.Mail.SmtpException: Service not available, closing transmission channel. The server response was: Cannot connect to SMTP server ::ffff:67.227.249.190 (::ffff:67.227.249.190:25), connect error 10060
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Exception source)
at System.Net.Mail.SmtpConnection.ConnectAndHandshakeAsyncResult.End(IAsyncResult result)
at System.Net.Mail.SmtpTransport.EndGetConnection(IAsyncResult result)
at System.Net.Mail.SmtpClient.ConnectCallback(IAsyncResult result)
--- End of stack trace from previous location where exception was thrown ---

 

" The server response was: Cannot connect to SMTP server ::ffff:67.227.249.190 (::ffff:67.227.249.190:25) "

 

I've double checked the host servers DNS cache, performed a ping, and the right IP address resolves. I'm not sure where the " ::ffff: " part is coming from. I've changed the settings and even tried restarting the server. Looking for some other suggestions or guidance.

 

 

Thank you.

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#2 Luke OFFLINE  

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Posted 29 March 2020 - 03:05 PM

Hi, it seems to suggest that Emby Server cannot reach the mail server you're trying to use.



#3 NerdGuy85 OFFLINE  

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Posted 29 March 2020 - 03:07 PM

Hi, it seems to suggest that Emby Server cannot reach the mail server you're trying to use.

Correct. The mail server is mail.iotprox.com and it resolves the IP in the log but I'm not sure where the first part of the IP is coming from. I even entered the IP in the host field box in the plugin and it returned with the same error. 



#4 pwhodges OFFLINE  

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Posted 29 March 2020 - 05:56 PM

I'm not sure where the " ::ffff: " part is coming from. 

 

That's an IPv4-mapped IPv6 address.  However, although I have run IPv6 for years, I have not come across this format, so can't help with why it's being used.

 

Paul







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