Log4Net smtp appender only send email when error with full log(debug & info & error). Only when the application ends

Question

I am trying to configure a smtp appender in the log4net.config file that I have. The problem is that I have looked all over the internet and cannot find how to send an email whe

Answer 1

This sounds like an application configuration issue rather than a log4net configuration issue. I would suggest putting a method in at the close of your application that emails you the log file if it detects that there is an error inside it. You could either detect this error by flipping a global variable from false to true in every place where you log errors or you could wait until the end of your application and then read the log file to see if it contains errors. The first method would be quicker at shutdown but it means modifying your code in multiple places. The latter would allow you to just add one method but it might take longer in a large file.

A third option would be to send errors to a second log file (so they go two places) using log4net. Then, when your application is closing and you are checking to see if you should email the log, just check for the existence of the error-only file. If it exists, delete it (so it isn't there next time) and email the full log.