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
