JSI Tip 8508. When Exchange Server 2003 is running on Windows 2000 Server, users cannot access their mailboxes using Outlook Mobile Access?

If your Exchange Server 2003 running on Windows 2000 server is heavily loaded, users cannot access their mailboxes using Outlook Mobile Access.

They may receive A system error has occurred, please see your system administrator..

The Exchange Server 2003 computer may post the following events to the Application event log:

Event 1
Event Type: Error
Event Source: MSExchangeOMA
Event Category: (1000)
Event ID: 1507
Date: MM/DD/YY
Time: HH:MM:SS
User: N/A
Computer: <ServerName>
Description: An unknown error occurred while processing the current request: Exception of type Microsoft.Exchange.OMA.DataProviderInterface.ProviderException was thrown.


Event 2
Event Type: Error
Event Source: MSExchangeOMA
Event Category: (1000)
Event ID: 1503
Date: MM/DD/YY
Time: HH:MM:SS
User: N/A
Computer: <ServerName>
Description: An unknown error occurred while processing the current request: Exception of type System.OutOfMemoryException was thrown.


Event 3
Event Type: Error
Event Source: MSExchangeOMA
Event Category: (1000)
Event ID: 1503
Date: MM/DD/YY
Time: HH:MM:SS
User: N/A
Computer: <ServerName>
Description: An unknown error occurred while processing the current request: Exception of type System.OutOfMemoryException was thrown.

This problem occurs because of virtual memory fragmentation.

To workaround this problem, stop and restart the World Wide Web Publishing service.

NOTE: Microsoft has a hotfix, 820745 Failfast occurs when you experience an "out of memory" condition, to correct his problem. After installing the hotfix, apply the following GCFailFastOnOOM.REG file:

REGEDIT4

\[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\]
"GCFailFastOnOOM"=dword:00000001

If an out of memory condition occurs, an event with the following description is logged, but a new process is automatically started for the next user request. No action on your part is required.

Failed to allocate nnnn bytes with NNNN bytes in use and #### free bytes. Process will be Terminated



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