KB ID 0001295
This post comes form my colleague Andrew Dorrian, he usually follows my migrating public folders article. Recently after a couple of Exchange 2016 migrations he has seen a problem where the public folders are visible in the Exchange Admin Console, but the users can’t access them.
Open ADSIedit.msc and connect to the ‘Configuration’ context.
CN=Services > CN=Microsoft Exchange > CN=(your organization name) > CN=Administrative Groups > CN=Exchange Administrative Group (FYDIBOHF23SPDLT) > CN=Databases.
Locate you mailbox database(s) > Right Click > Properties > Locate: msExchHomePublicMDB > Edit > Clear > OK > Apply > OK.
Open an Exchange administrative shell and run the following command;
Note: Depending on the size of your organisation, you might want to wait a while for the changes to get replicated.
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