The Exchange 2003 health monitor can check to make sure important Exchange services are running and also gauge the current server load.

Settings

       Server - Name of the server Exchange 2003 is running on

Services

               Information store - Check to verify the information store service is running

               MTA stacks - Check to verify the MTA stacks service is running

               System attendant - Check to verify the system attendant service is running

               Routing engine - Check to verify the routing engine service is running

               IMAP4 - Check to verify the IMAP4 service is running

               POP3 - Check to verify the POP3 service is running

               Site replication - Check to verify the site replication service is running

Server Load

               The server load options check metrics of Exchange that can show when the server is overloaded. The initial settings are estimates, and you may have to adjust them to your particular server for the best performance.

               Receive queue size - This is the number of received message Exchange is waiting to process. This value should be low. A high value indicates Exchange is receiving messages faster than it can route them.

               Send queue size - This is the number of messages waiting to be sent by Exchange. This value should be low. A high value indicates more message are being sent to Exchange than it can send efficiently.

               User count - This is the number of users actively using the information store.

               RPC requests - This is the number of client requests currently being serviced by Exchange. This value should be below 25. A high value indicates Exchange is overloaded with client requests.