Oab not updating
mailboxes from Exchange Server 2010 to 2013 we can turn our attention to the public folder migration.
Although Exchange Server 2013 provides support for public folders with the new modern public folders, you may wish to take this opportunity to review whether your organization needs to retain public folders at all.
I worked on a case recently where one particular user was not appearing in the offline address book in an Exchange 2010 organization.
This person had recently changed their name and the user account and Exchange details were updated with the new name.
If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices.After the usual OAB update period had passed they were no longer appearing under the old or new name, though they appeared in the GAL itself when searched via OWA or an online Outlook client.Looking into it I found some warnings on the mailbox server that was responsible for generating the offline address book.If they are no longer needed then removing them entirely from the Exchange organization would be simpler.However if that decision can’t be made, or they are still required for some reason, then a migration to Exchange 2013 can be performed.
At a high level the process involves: Of course the reality is that there are many caveats and ways for a public folder migration to go wrong.