Exchange 2013 move mailbox error
Hello, Hoping someone could help with this error im getting. When i do a mailbox move from 2010 to 2013 using the 2013 Gui. I get an error saying ...... Cannot open mailbox /o=First Organization/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=EXCHANGE/cn=Microsoft System Attendant. Environment details are: DC 2008r2 Exchange 2010 on 2008 r2 Exchange 2013 on 2008 r2 Has any come across this before? Thanks
April 11th, 2013 4:57am

hi, this blog has the answer for your error. http://social.technet.microsoft.com/wiki/contents/articles/15842.mailbox-migration-fails-with-error-cannot-open-system-attendant-mailbox-in-exchange-server-2013.aspx get-mailbox -arbitration Regards Viman
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April 11th, 2013 6:21am

Hi Viman Thank you for the reply, I checked out the article but still no luck, Both my databases are mounted. Any other ideas? Thanks for your help.
April 11th, 2013 6:35am

Hi, Apologies if this seems really obvious but did you upgrade to CU1 and is Exchange 2010 at SP3? What happens if you try to move the mailbox via the Exchange 2010 GUI? H
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April 11th, 2013 9:27am

hi, this blog has the answer for your error. http://social.technet.microsoft.com/wiki/contents/articles/15842.mailbox-migration-fails-with-error-cannot-open-system-attendant-mailbox-in-exchange-server-2013.aspx get-mailbox -arbitration Regards Viman
April 11th, 2013 1:14pm

Did you delete the default mailbox database which got created automatically during the installation?
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April 11th, 2013 4:52pm

Did you delete the default mailbox database which got created automatically during the installation?
April 11th, 2013 11:44pm

We're running into the same issue, moving from Exchange 2007 to 2013. All of the most recent patches and rollups are installed on all servers. All databases are showing as mounted, and all necessary mailboxes return in the get-mailbox -arbitration request. DC 2008r2/2012 Exchange 2007 (version 8.3, build 83.6) on 2008r2 (1 CA, 1 HT, 3 MB servers) Exchange 2013 (version 15.0, build 516.32) on 2012 (1 CAS, 2 MB servers) DAG with 2 servers, 2 databases Appreciate any feedback! Royal
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May 2nd, 2013 1:58pm

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