Event ID - 1220

Event Id1220
DescriptionDuring intersite replication, the directory replication agent (DRA) received an invalid backsync update request message for naming context <object name> from the directory at <server name>. This Site Replication service is not replicating that NC from another directory.
Event InformationThe foreign directory is not in the Reps-From list on the named naming context. All backsync requests from that directory will be ignored. The directory replication agent (DRA) is responsible for synchronizing with the other directories and accepting dir
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