Monitor the following performance metrics (and more) on your Microsoft Exchange Server:

ActiveSync Service - 61 metrics
ActiveSync Notify OMA Push - 16 metrics
Address List Service Table - 16 metrics
Database Table - 19 metrics
Database Instance Table - 15 metrics per database
Database Service Access Caches - 38 metrics
Database Service Access Domain Controllers - 24 metrics
Database Service Access Global Counters - 6 metrics
Database Service Access Process Table - 6 metrics
Epoxy Table - 10 metrics
Event Service - 11 metrics
HTTP Extensions Table - 101 metrics per extension
IMAP 4 Table - 91 metrics per entry
Information Store - 110 metrics
Information Store Mailbox Table - 32 metrics per mailbox
Information Store Public Table - 48 metrics
Information Store Transport Driver Table - 35 metrics per entry
Message Transfer Agent (MTA) - 42 metrics
MTA Connections Table - 29 metrics per connection
OLE DB Events Table - 5 metrics per entry
OLE DB Resource Table - 17 metrics per entry
Outlook Mobile Access - 20 metrics
Routing Organization Object Table - 8 metrics per entry
Routing Service Table - 2 metrics per entry
Site Replication Service - 13 metrics
SMTP Routing Table - 7 metrics per entry
Transport Store Driver Table - 15 metrics per entry
Web Mail Table - 76 metrics per entry