| Event Id | 1223 |
| Source | Active Directory |
| Description | The certificate presented by %1 (as issued by %2) for intersite replication was rejected because the certifying authority chain is not trusted. The record data is the trust status code. Replication access has been denied to the sender and the message has been discarded. |
| Event Information | The certificate presented by the specified domain controller for intersite replication was rejected because the certification authority is not trusted. Replication access was denied to the domain controller and the certificate was discarded. The name of the certificate authority does not match the name expected by the domain controller. This might be a malicious computer. Verify that the domain controller presenting the certificate is a trusted domain controller. |
| Reference Links | Monitoring AD Changes: Article |
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