Synch messages after being moved to new server. Microsoft Exchange offline address book | 0X8004010F

Hello,
 
I am in the process of migrating from Exchange 2003 to Exchange 2010.  
I am conducting local mailbox moves from 2003 to 2010.

For one of the mailboxes (so far reported to me), a user is seeing several synch errors in Outlook.

Errors looks like this:

9:58:19   Synchronizer Version 12.0.6672
9:58:19   Synchronizing Mailbox "User Mailbox"
9:58:19   Done
9:58:19   Microsoft Exchange offline address book
9:58:19   0X8004010F

I checked the server, Microsoft Exchange On-Premises | Organization Configuration | Mailbox | Database Properties | Client Settings
 
Currently, there is no entry in Offline address book.  I do have the option to Browse and select \Default Offline Address List.

Should I be doing this? I am still in the midst of moving mailboxes, and I'm not sure if this is the correct or safe process.

Please advise.

Regards,
Rudy
realtimerAsked:
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Simon Butler (Sembee)ConsultantCommented:
You need to select an offline address book on the properties of the mailbox database. You also need to assign an Exchange 2010 public folder database.

Have you replicated your public and system folders from Exchange 2003 to Exchange 2010? If not then you need to do that, ideally before you move any mailboxes. Exchange 2010 in coexistence will use public folder distribution for the OAB. You can add web distribution as well, but that only works for Outlook 2007 and higher.

You cannot ignore public folders at this stage. Public folders need to be replicated, removed from the Exchange 2003 server once all mailboxes have been moved. Only then can you think about removing the public folder database if it isn't required.

Simon.
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realtimerAuthor Commented:
Thanks Simon.
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