How do I use a StringMatchFilter to send logging events to different logs by their message content in log4net?

First evaluator tells buffering appenders when to flush. From the look of your configuration I don't think you're buffering. (so you can get rid of the bufferSize and lossy parameters, too).

I see your appender filter chains have the required DenyAllFilters . But, your root logger configuration is showing no levels, try adding.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.