It looks like someone has done something similar with the SmtpAppender: http://marc.info/?l=log4net-user&m=120887073724259&w=2
You could use the BufferingForwardingAppender to capture the messages then send aggregate information when its time to flush the buffer. ----- Original Message ---- From: Pranav Varia <[EMAIL PROTECTED]> To: "log4net-user@logging.apache.org" <log4net-user@logging.apache.org> Sent: Friday, May 2, 2008 5:00:08 PM Subject: Throttling/Rollup feature in EventLogAppender Is there a Throttling feature available or planned in EventLogAppender. If we log to event log a message that could potentially be logged at frequency of one per incoming request to my web application, it could flood the event log with millions of messages if/when things go wrong. If there was a = way to roll them up every x seconds into a single event log message (with a count of how many messages where rolledup), it would be useful to me. Is there any such feature? Or workaround? Regards Pranav
