exceptiontail 

A library that helps you gather exception information from the applications that you are building. More details at https://www.exceptiontail.com

A Log4Net appender for the Exceptiontail library. This appender uses the 4.0 version of the library. More details at https://www.exceptiontail.com/articles/log4net

A Log4Net appender for the Exceptiontail library. This appender uses the 2.0 version of the library. More details at https://www.exceptiontail.com/articles/log4net