Event ID - 1073

Event Id1073
DescriptionThe directory replication agent (DRA) failed while assembling a replication update message from another site. The DRA will try again. If this condition persists, stop and restart this Microsoft Exchange Server computer.
Event InformationAccording To Microsoft:
An update request message could not be encoded into an e-mail attachment.The directory replication agent (DRA) is responsible for synchronizing with the other directories and accepting directory updates. This is performed by sending e-mail messages.

To allocate more memory, close any nonessential applications. You may also increase your systems physical or virtual memory. Verify that there is enough disk space for the paging file to grow.If the error persists, stop and restart the site replication service. If the error still persists, stop and restart the Exchange server.
Reference LinksMicrosoft product: Exchange Version: 6.0 Event Source: MSExchangeSRS Event ID: 1073

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