Use Diagnostic Logging

Use diagnostic logging to record significant events relating to authentication, connections, and client actions. Diagnostic logging for IMAP4 is written to the Windows 2000 event log and is set on the server hosting the IMAP4 virtual server. If multiple IMAP4 virtual servers are located on one Exchange server, each IMAP4 virtual server is logged at the level set on the host server. By default, a logging level of None is selected to log only critical and error events.

To set a diagnostic logging level:

1. Start System Manager
   on the Start menu, point to Programs, point to Microsoft Exchange, and then click System Manager.
2. Navigate to a server.

   System Manager

   1. Administrative Groups
   2. Administrative group
   3. Servers
   4. Server
3. In the console tree, right-click a server, and then click Properties.
4. On the Diagnostics Logging tab, in Services, click IMAP4Svc.
5. Click an item in Category, and then select a Logging Level:
   • None. This level logs only critical and error events.
   • Minimum. This level logs high-level events by writing one entry for each major task performed by the service. This level of logging can help identify where a problem might be occurring.
   • Medium. This level records entries for each step taken to run a task. This level of logging gives more detail once the location of the problem is found.
   • Maximum. This level records entries for each line of code in the service, providing a complete trail of the operation of a service and logging all events. This level of logging creates a large amount of data, which can affect server performance.