NCM SMTP Server

We migrated to a new SMTP relay (IIS) and it works fine for SAM/NPM.

NCM its not working and I've tried everything.

Why is there not a test SMTP widget for NCM  like there is for NPM? Slight smile

How can I troubleshoot SMTP NCM email failures?

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  • Any ideas on these? Why is NPM SMTP working fine and not NCM?

    2021-07-22 06:19:10,652 [29] ERROR SolarWinds.Cirrus.BusinessLayer.Jobs.Notifications.BaseJobNotification - Unable to send plain text: System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
    2021-07-22 06:19:08,480 [29] WARN  SolarWinds.NCM.Common.Help.TlsScope - There was a web exception. Current security protocols: 'Tls, Tls11, Tls12'. Fallback to the latest version of TLS.System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host


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  • Any ideas on these? Why is NPM SMTP working fine and not NCM?

    2021-07-22 06:19:10,652 [29] ERROR SolarWinds.Cirrus.BusinessLayer.Jobs.Notifications.BaseJobNotification - Unable to send plain text: System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
    2021-07-22 06:19:08,480 [29] WARN  SolarWinds.NCM.Common.Help.TlsScope - There was a web exception. Current security protocols: 'Tls, Tls11, Tls12'. Fallback to the latest version of TLS.System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host


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