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Using the event viewer we can actually detect the source,category and description of any error concerning the applications and systems
To identify the cause of message flow issues, carefully review the data that is contained in the application log and system log. Use the following procedure to view errors, warnings, and informational events in the application log.
Types of Logs Found in Event ViewerMicrosoft Windows Server 2003, Windows XP, Windows 2000 Server, and Windows NT record events in three kinds of logs:
Servers running Windows Server 2003 and Windows 2000 Server that are domain controllers might have the following additional logs in Event Viewer:
Types of Events Logged
The icon on the left side of the Event Viewer screen describes the classification of the event by the Windows operating system. Event Viewer displays these types of events:
What are the main event components of the Event viewer?
The main event components are as follows:
Couple of samples available in the event viewer (exchange specific):
How to view the application log in the event viewer?
Click Start, point to Programs, point to Administrative Tools, and then click Event Viewer.
In the console tree, click Application Log.
To sort the log alphabetically and quickly locate an entry for an Exchange service, in the details pane, click Source.
Double-click a log entry to open an event’s properties page.
To filter the log to list entries for a specific type of Exchange-related event, from the View menu, click Filter.
In Application Log Properties, use the Event source list to select an Exchange-related event source. For example:
In the Category list, select a specific set of events or, to view all events for that event source, leave the default setting at All.
Click OK.
How to view the System log in event viewer?
Use the following procedure to view errors, warnings, and informational events in the system log for SMTP service.
Click Start, point to Programs, point to Administrative Tools, and then click Event Viewer.
In the console tree, click System Log.
To sort the log alphabetically and quickly locate an entry for an Exchange service, in the details pane, click Source.
Double-click a log entry to open an event’s properties page.
To filter the log to list entries for a specific type of SMTP service events, from the View menu, click Filter.
In System Log Properties, in the Event source list, select SMTPSVC.
In the Category list, select a specific set of events or, to view all events for the SMTP service, leave the default setting at All.
Click OK.
Troubleshooting with Event viewer and Exchange Server:
Within each Event Viewer log, Exchange Server records informational, warning, and error events. Monitor these logs closely to track the types of transactions being conducted on your Exchange servers. You should periodically archive the logs or use automatic rollover to avoid running out of space. Because log files can occupy a finite amount of space, increase the log size (for example, to 50 MB) and set it to overwrite, so that Exchange Server can continue to write new events.
You can also automate event log administration by using tools and technologies such as the following: