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MSExchange Mailbox Replication 1006 warning

The event log shows MSExchange mailbox replication warning Event ID 1006. The Microsoft Exchange Mailbox Replication service was unable to process jobs in a mailbox database. Why do you see Event ID 1006 in Event Viewer, and what is the solution?

Warning MSExchange Mailbox Replication

Start Event Viewer and filter on Event ID: 1006.

MSExchange mailbox replication warning Event ID 1006 Event Viewer

The Microsoft Exchange Mailbox Replication service was unable to process jobs in a mailbox database.
Database: Mailbox Database 1246908739
Error: MapiExceptionMdbOffline: Unable to make connection to the server. (hr=0x80004005, ec=1142)

Solution MSExchange mailbox replication warning Event ID 1006

Start Services. Restart the service Microsoft Exchange Mailbox Replication. You can restart the service during the working hours.

MSExchange mailbox replication warning Event ID 1006 Restart Exchange mailbox replication service

Have a look at the Event Viewer after restarting the service. The Event ID 1006 MSExchange mailbox replication is gone. Did this work for you?

How did MSExchange mailbox replication 1006 happen?

You removed or dismounted the database in Exchange Server 2013/2016/2019. The Exchange server is still making use of the database. For example, there was a migration going on from this database to another database.

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Conclusion

In this article, you learned how to solve MS Exchange mailbox replication warning Event ID 1006. First, check the Event Viewer for Event ID 1006. After that, restart the service, as shown in the article. As of last, verify that the warning is not showing anymore.

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ALI TAJRAN

ALI TAJRAN

ALI TAJRAN is a passionate IT Architect, IT Consultant, and Microsoft Certified Trainer. He started Information Technology at a very young age, and his goal is to teach and inspire others. Read more »

This Post Has 2 Comments

  1. Hi Ali,

    Thanks for sharing. I’ve dismounted a database in Exchange 2016. Next to eventid 1006 I also get 1009 and 1010 error messages. After mounting the database the events are informational and good. But I want to delete the database at the end. What can I do to prevent Exchange from giving these events? What is the most clean method to dismount and delete the database, without ending up with all kind of error events?

    I want to delete the database because I moved the mailboxes to O365. I’m in a Hybrid situation.

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