| Event Id | 21146 |
| Source | Microsoft ISA Server Report Generator |
| Description | Microsoft ISA Server SMTP Message Screener failed to start. Reason: The SMTP Message Screener failed to allocate memory (error code %1). |
| Event Information | According to Microsoft Cause: The ISA Server SMTP Message Screener failed to allocate memory. Resolution: Free up memory. Close other programs that are running. Use the Task Manager to check programs and processes that are using large amounts of system resources.Restart the service hosting the message screener sink filter.Reinstall the message screener filter. |
| Reference Links | Event Id:21146 Source Id:Microsoft ISA Server Report Generator |
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