Updating address book in outlook 2016
In our case, we had these error messages: Notice the error “Is Local OABFile Current: Manifest Enforcement Disabled And Local File Too Old”.
Exchange 2013/2016Exchange 2013/2016 will only be distributing the OAB via web-distribution. For all versions of Outlook (since 2003) you have two choices, either take Outlook out of cached mode* (so it queries the ‘live’ global address list).
In addition to this there a a few methods by which your Outlook clients get the offline address book.*Note: Unless you are NOT in cached mode.
Outlook 2003 (and older)* clients get their OAB from a public folder, Outlook 2007 (and newer) clients can get their OAB from ‘Web-based distribution’ (basically form the website on the Exchange (or Exchange CAS) server.
To summarize – we have an OAB that is not updating and clients that cannot update their local copies because the copies are too old.
Now the problem is becoming visible to all users and will eventually become a support issue for the client.