Applies to: Exchange Server 2010 SP3
Topic Last Modified: 2012-04-24
Microsoft Exchange Server 2010 Availability generates events in Event Viewer so that you can troubleshoot and verify the performance of the Exchange Availability features and services. Event Viewer tracks the following kinds of events in the given order, based on importance:
- Error events
- Warning events
- Informational events
Exchange Availability Service Errors and Events
The following table provides a list of the Availability events that you can use to troubleshoot and monitor the Availability service.
Availability Service events
| Event ID | Category | Event type | Logging | Value or description | Class |
|---|---|---|---|---|---|
|
MSExchange Availability 4018 |
Availability Service |
Error |
LogAlways |
Process %1: An exception occurred while attempting to locate a Client Access server to handle a request for e-mail address %2. The returned exception is %3. |
Availability |
|
MSExchange Availability 4001 |
Availability Service |
Error |
LogAlways |
Process %1: %2 failed. Exception returned is %3. This event may occur when Availability Service cannot discover an Availability Service in the remote forest. |
Availability |
|
MSExchange Availability 4017 |
Availability Service |
Error |
LogAlways |
Process %1: No Client Access server was found to handle a request for e-mail address %2. This may be due to a misconfigured topology. |
Availability |
|
MSExchange Availability 4010 |
Availability Service Authentication |
Error |
LogAlways |
Process %1: Request from %2 failed security checks. |
Availability |
|
MSExchange Availability 4003 |
Availability Service |
Error |
LogAlways |
Process %1: %2 failed. The exception returned is %3. The Availability service could not successfully retrieve Schedule+ free/busy data for one or more legacy Exchange mailboxes. To find the root cause of this error, increase the diagnostic logging level of the MSExchange Availability service. |
Availability |
|
MSExchange Availability 4006 |
Availability Service |
Error |
LogAlways |
Process %1: Failed to initialize service, exception returned is %2 |
Availability |
|
MSExchange Availability 4002 |
Availability Service |
Error |
LogAlways |
Process %1: %2 failed. Caller SIDs: %3. The exception returned is %4. Make sure that the Active Directory site/forest that contain the user's mailbox has at least one local Exchange 2010 server running the Availability service. Turn up logging for the Availability service and test basic network connectivity. |
Availability |
|
MSExchange Availability 4005 |
Availability Service |
Warning |
LogAlways |
Process %1: Configuration information for the current forest could not be found in Active Directory. To find the root cause of this error, increase the diagnostic logging level of the MSExchange Availability service. |
Availability |
|
MSExchange Availability 4016 |
Availability Service |
Error |
LogAlways |
Process %1: Unable to logon as network service context for proxying requests. Cross-site and cross-forests requests could fail because of this. Exception is %2. |
Availability |
|
MSExchange Availability 4012 |
Availability Service Configuration |
Error |
LogAlways |
Process %1: Cross-forest proxy request to %2 could not be initiated due to invalid credentials. Specific error is: %3 |
Availability |