Event ID - 21130

Event Id21130
SourceDNS Intrusion Detection Filter
DescriptionMicrosoft ISA Server SMTP Message Screener failed to read the configuration from the ISA Server computer (error code %1).
Event Information According to Microsoft :
CAUSE :
The event may be caused due to connectivity problems, policy enforcement by ISA Server, or bad credentials.

SOLUTION :
Use PING to verify connectivity with the ISA Server computer.Check the logs to verify that ISA Server is not dropping the connection.Use the SMTPCred tool to verify that the credentials are correct.
Reference LinksEvent ID: 21130 Of Source ID:DNS Intrusion Detection Filter

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