title: Filter on exception text in elmah
body: <p>Is there a way to filter exceptions in elma using the exception message?</p>
  
  <p>Examples:<br>
  "System.Web.HttpException: Request timed out." I don't want to filter out all HttpException, but only the timed-out requests.<br>
  "System.Web.HttpException: Maximum request length exceeded."</p>
  
  <p>What I don't want to do is write own code for that. So is it possible to do this with the buildin-web.config configuration?</p>
  
  <p>Thank you!</p>