Exchange Issues Event: 1006

Event ID 1006: MS Exchange Mailbox Replication

Need for monitoring Event ID 1006:

Event ID 1006 indicates that the mailbox replication service failed to process the replication requests. It throws an MAPI exception (unknown user error). It is important to monitor this Exchange issue to identify and fix any replication issues and ensure that there is always an updated copy of your organization’s database. Read on to know how to monitor the mailbox replication stats and find out earlier about anomalies related to replication if any, using Exchange Reporter Plus

Monitoring mailbox replication with Exchange Reporter Plus

Exchange Reporter Plus is a reporting, monitoring and change auditing tool for Exchange servers, Exchange Online and Skype for Business servers. It offers an exclusive report to monitor mailbox replication status all time. You can also configure alerts to get immediate SMS or email update to the configured number and IDs. In case of major errors, the alerts are classified as critical and displayed in the dashboard.

Steps to access mailbox replication reports:

1. Go to the Monitoring tab on the top pane.
2. Navigate to Exchange Server > Server Monitoring.
3. Choose the Mailbox Replication Health report from the list of reports.
4. Enter the period and type of view for report generation.

As this event specifically indicates the failure in mailbox replication due to the inability to process the mailbox move requests, you might also want to audit the mailbox move request related actions:

Steps to access Mailbox Move Request audit reports:

1. Go to the Audit tab
2. Navigate to Exchange Server > Mailbox Properties Changes.
3. Select the Mailbox Moved report.
4. Enter the period and type of view for report generation.

The report is generated once you enter the necessary inputs. You can add or remove columns from the generated report as required and also use filters to select and monitor particular mailboxes.