In any real-world application, unhalted exceptions are an unavoidable fact of life. Such exceptions should occur relatively infrequently, but when they do some kind of supporting infrastructure best be in place to capture the when and why of the exceptions. As a developer, you should have the ability to perform a postmortem analysis on what went wrong and learn from it. Paramount to such analysis is capturing and logging sufficient information at the point of failure. What this post covers is the thoughts and development of an Asp.Net HttpModule that captures and emails such unhalted exception information to a designated email address.