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https://issues.apache.org/jira/browse/LOG4NET-474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14738237#comment-14738237
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David Rankin commented on LOG4NET-474:
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Hi [~dpsen...@gmail.com]
Sorry, thats not clearn. By wrap, I mean use a using statement c#
using(SmtpClient c = new SmtpClient()) {
//do stuff to send email
} //dipose
No it did not crash my app in this case, but I did not get the email
notification that my app was down.
> log4net:ERROR [SmtpAppender] ErrorCode: GenericFailure. Error occurred while
> sending e-mail notification.
> ---------------------------------------------------------------------------------------------------------
>
> Key: LOG4NET-474
> URL: https://issues.apache.org/jira/browse/LOG4NET-474
> Project: Log4net
> Issue Type: Bug
> Components: Core
> Environment: Microsoft Windows Server 2012, Running in part of
> windows service.
> Reporter: David Rankin
> Original Estimate: 0.25h
> Remaining Estimate: 0.25h
>
> Error happens when trying to send emails.
> I have checked github source here to try help with this problem.
> https://github.com/apache/log4net/blob/782e8267dc44a3db5e0b095c91c1de76a37a9e9b/src/log4net/Appender/SmtpAppender.cs
> If you wrap the SmtpClient (on Line 394 ) It should probably fix this issue.
> Thats just from my experience. Please let me know if you need anthing else?
> Please see the error log from my debug console.
> log4net:ERROR [SmtpAppender] ErrorCode: GenericFailure. Error occurred while
> sending e-mail notification.
> 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.CheckCommand.Send(SmtpConnection conn, String& response)
> at System.Net.Mail.MailCommand.Send(SmtpConnection conn, Byte[] command,
> MailAddress from, Boolean allowUnicode)
> at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender,
> MailAddressCollection recipients, String deliveryNotify, Boolean
> allowUnicode, SmtpFailedRecipientException& exception)
> at System.Net.Mail.SmtpClient.Send(MailMessage message)
> --- End of inner exception stack trace ---
> at System.Net.Mail.SmtpClient.Send(MailMessage message)
> at log4net.Appender.SmtpAppender.SendEmail(String messageBody)
> at log4net.Appender.SmtpAppender.SendBuffer(LoggingEvent[] events)
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