nVision has several special counters designed to monitor mail and web servers. These counters not only connect to the server, but also perform some test to ensure proper server operation: test the page load time and content, list incoming e-mails and try to send a test e-mail. To perform such test operations, you have to create the appropriate counter on the Performance counters tab in the Host info window. For more information about counter (test) types and operations performed, refer to the Counter types topic. For information about creating counters refer to the Managing performance counters topic.
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