2018/04/24 18:05:57 [9432]: Error
Error in com.xmpie.uStore.EmailSender.EmailEngine.SendEmail().
System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.
at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller)
at System.Net.Mail.SmtpConnection.GetConnection(ServicePoint servicePoint)
at System.Net.Mail.SmtpClient.GetConnection()
at System.Net.Mail.SmtpClient.Send(MailMessage message)
--- End of inner exception stack trace ---
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at com.xmpie.uStore.EmailSender.EmailEngine.SendEmail(EmailParams inEmailParams, SendParams inSendParams, String inEmailBody, String inEmailSubject, String inSenderEmailAddress, String inSenderDisplayName, String fileAttachmentPath)----------------------------------------