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Yes, you will need to delete those mailboxes and re-create them. &nbsp;<br />
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You know this, but moving forward, backups are necessary. &nbsp;Also, you may want to look into setting up a DAG. &nbsp;This will not only give you high availability, but also some redundancy.<br />
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Here is how to set up a DAG on Exchange 2013. &nbsp;<a href="http://www.mustbegeek.com/configure-dag-in-exchange-2013/" rel="ugc">http://www.mustbegeek.com/configure-dag-in-exchange-2013/</a>
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Yes, you will need to delete those mailboxes and re-create them.  

You know this, but moving forward, backups are necessary.  Also, you may want to look into setting up a DAG.  This will not only give you high availability, but also some redundancy.

Here is how to set up a DAG on Exchange 2013.  http://www.mustbegeek.com/configure-dag-in-exchange-2013/ [http://www.mustbegeek.com/configure-dag-in-exchange-2013/]

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I had one of my desktop support peeps build four new mailboxes. &nbsp;by total accident, she created them on one of the default DBs installed when exchange is installed. &nbsp;When Harvey hit Houston, we lost those databases and we were not backing them up since they weren't supposed to be used. &nbsp;So, now I have four users on an orphaned mailbox database.<br />
<br />
I tried to more them, but since exchange 2013 can't see the old database, the move is failing.<br />
<br />
Is my only option to delete the mailboxes and recreate them?<br />
<br />
Thanks<br />
<br />
Cliff
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I had one of my desktop support peeps build four new mailboxes.  by total accident, she created them on one of the default DBs installed when exchange is installed.  When Harvey hit Houston, we lost those databases and we were not backing them up since they weren't supposed to be used.  So, now I have four users on an orphaned mailbox database.

I tried to more them, but since exchange 2013 can't see the old database, the move is failing.

Is my only option to delete the mailboxes and recreate them?

Thanks

Cliff

Mailboxes on a lost database

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.