Outlook cannot connect after mailbox move from Exchange 2007 to 2013

I am in the middle of migrating an Exchange Server 2007 to 2013. Everything went fine up until I moved the first mailbox. I can access the mailbox via OWA, but not Outlook 2010. When I checked the account settings, the server is incorrect. It shows eddcfec3-19d8-444f-8618-c51bab08d877@mydomain.org. If I manually enter the name of the Exchange 2007 server, it changes to the Exchange 2013 server, as it should. I save the settings, open Outlook, the connection fails, and the server setting is changed to eddcfec3-19d8-444f-8618-c51bab08d877@mydomain.org

I then ran the Microsoft Connectivity Analyzer. There are 2 lines which caught my attention:

AutoDiscoverInternalRpcClientServer
eddcfec3-19d8-444f-8618-c51bab08d877@mydomain.org

AutoDiscoverHomeMdbDn
/o=mydomainMail/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=eddcfec3-19d8-444f-8618-c51bab08d877@mydomain.org/cn=Microsoft Private MDB

I've checked and rechecked everything and can't seem to locate my error.

Any thoughts? Thanks.