You can use diagnostic logging to record significant events
relating to authentication, connections, and client
actions. Diagnostic logging for POP3 is written to the Windows 2000
event log and is set on the server hosting the POP3 virtual server
instance. If multiple POP3 virtual servers are added to one
Exchange computer, all POP3 virtual servers are logged at the level
set on the host server. By default, a logging level of None
is selected to log only critical errors.
In the console tree, right-click a server, and then click
On the Diagnostic Logging tab, in Services, click
Click a Category, and then select one of the following
None. This level logs only critical and errors.
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
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 service's
operation and logging all events. This level of logging creates a
large amount of data, which can affect server performance.