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Some emails are not sent during SnapCenter backups

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snapcenter
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snapx
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Applies to

  • SnapCenter 6.X
  • NetApp Data ONTAP 9.X

Issue

At the end of an SnapCenter backup, randomly, the expected email is not properly sent and fails with the error below in the SnapManagerWeb.log:

YYYY-MM-DDThh:mm:ss+02:00 ERROR SnapManagerWeb_79247 PID=[4820] TID=[90] Error sending email: MailKit.Net.Smtp.SmtpProtocolException: The SMTP server has unexpectedly disconnected: Ready to start TLS at MailKit.Net.Smtp.SmtpStream.ReadAhead(CancellationToken cancellationToken) at MailKit.Net.Smtp.SmtpStream.ReadResponse(CancellationToken cancellationToken) at MailKit.Net.Smtp.SmtpClient.SendEhlo(Boolean connecting, String helo, CancellationToken cancellationToken) at MailKit.Net.Smtp.SmtpClient.Ehlo(Boolean connecting, CancellationToken cancellationToken) at MailKit.Net.Smtp.SmtpClient.PostConnect(Stream stream, String host, Int32 port, SecureSocketOptions options, Boolean starttls, CancellationToken cancellationToken) at MailKit.Net.Smtp.SmtpClient.Connect(String host, Int32 port, SecureSocketOptions options, CancellationToken cancellationToken) at SnapManager.SMSCore.Log.LogCore.SendBackupEmail(String id, MimeMessage message) at SnapManager.SMSCore.Log.LogCore.SendBackupDetailsReport(Int64 jobId, SmJobStatus status)
 

 

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