I am using Exchange 2000 server with sp3. In the morning when I logged in to the server .The server speed was very slow.I checked system drive I found 1 gb space less than previous day.
Then I given netstat command and it was showing so many smtp connections established .when I stopped smtp service the server speed was very good as of previous day.
How do eliminate this problem ? Is it virus attack or trojan .How do I check the lost 1 GB space .