| Event Id | 21134 |
| Source | SOCKS Filter |
| Description | Microsoft ISA Server SMTP Message Screener held a mail message in the BadMail queue because the message arrived while in lockdown mode. Further events of this type will not be reported to the Event Log until the service is restarted. |
| Event Information | According to Microsoft Cause: The initial configuration could not be read, and the filter is in lockdown mode. Mail messages arriving are put in BadMail queue until the configuration is retrieved. Resolution: Verify there is connectivity from the Message Screener filter computer to the ISA Server computer. |
| Reference Links | Event Id:21134 Source Id:SOCKS Filter |
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